419 relations: ABC-CLIO, Abortion, Abstinence-only sex education, Academic Press, Adhyatmik Ishwariya Vishwa Vidyalaya, Adultery, Aedeagus, Age of consent, Alcohol and sex, Alex Comfort, Alfred Kinsey, Allyn & Bacon, American Bar Association, American Broadcasting Company, American Psychiatric Association, American Urological Association, Amnesty International, Anal sex, Anilingus, Animal sexual behaviour, Annulment, Anorgasmia, Antibody, Antisexualism, Anus, Artificial insemination, Assisted reproductive technology, Augsburg Fortress, Bacteria, Bahá'í Faith, Baker Publishing Group, Barron's Educational Series, Bartholin's gland, BBC News, Bhikkhu, Bhikkhuni, Bible, Bird, Birth control, Blanchflower v. Blanchflower, Bleeding on probing, Blood pressure, Blood product, Body image, Bonobo, Botulinum toxin, Brahma Kumaris, Buddhism, Calendar-based contraceptive methods, Cambridge University Press, ..., Canadian Journal of Human Sexuality, Cancer, Cardiac arrest, Caregiver, Carnal knowledge, Catholic Church, Celibacy, Cengage, Centers for Disease Control and Prevention, Cervical cancer, Cervical conization, Cervix, Channel 4, Charge of the Goddess, Childbirth, Chile, Chimpanzee, Chlamydia infection, Christianity, Civil and political rights, Civil union, Clerical celibacy, Clinical Psychology Review, Clitoris, Cloaca, Cohabitation, Coital alignment technique, Collins English Dictionary, Combined oral contraceptive pill, Concealed ovulation, Condom, Consummation, Continuum International Publishing Group, Cornell University Press, Coronary circulation, Courtship, CRC Press, Crime against nature, Criminal law, Cruelty to animals, Cunnilingus, Dapoxetine, Death during consensual sex, Delayed ejaculation, Depression (mood), Developing country, Developmental disability, Diagnosis of HIV/AIDS, Diagnostic and Statistical Manual of Mental Disorders, Dilation and curettage, Dildo, Disability, Discovery Channel, Divorce, Divorce law by country, Dolphin, Dominican Republic, Dorland's medical reference works, Dragonfly, DSM-5, Dyspareunia, E. P. Dutton, Ectopic pregnancy, Egg cell, Ejaculation, Elsevier, Emasculation, Embryo, Emergency department, Emotional intimacy, Endometrium, Epidemiology of HIV/AIDS, Erectile dysfunction, Erection, Eroticism, Estrous cycle, Ethiopia, Euphemism, Europa (Web portal), External fertilization, Extramarital sex, Fake orgasm, Fallopian tube, Federal Bureau of Investigation, Fellatio, Fertilisation, Fertility awareness, Fingering (sexual act), Fish, Five Precepts, Flirting, Fluvoxamine, Folklore, Foreplay, FOSB, Frot, Fuck, Gamete, Gay, Gender role, Genital ulcer, GLBTQ Legal Advocates & Defenders, Gnathostomata, Gonorrhea, Greenwood Publishing Group, Grounds for divorce, Guilford Press, Guttmacher Institute, Harm reduction, HarperCollins, Hemipenis, Hepatitis B, Hinduism, HIV, HIV/AIDS, HIV/AIDS in Africa, Hominidae, Homosexual behavior in animals, Honeymoon, Hormone, Human anus, Human bonding, Human papillomavirus infection, Human penis, Human sexual activity, Human sexual response cycle, Hymenotomy, Hypersexuality, Hypodermic needle, Hysterectomy, Immune system, Incest, Indian subcontinent, Infidelity, Infobase Publishing, Insect, Insemination, Instinct, Institut national d'études démographiques, Intercrural sex, Internal fertilization, Intrauterine device, Islam, JAMA (journal), Jaypee Brothers, Jewish views on marriage, John Wiley & Sons, Johns Hopkins University Press, Jones & Bartlett Learning, Journal of Sex & Marital Therapy, Judaism, Kaiser Family Foundation, Ketubah, Kinsey Institute for Research in Sex, Gender, and Reproduction, Labia minora, Latin, Latin America, Laurence Steinberg, Laws regarding rape, Lesbian sexual practices, LGBT in Islam, LGBT rights in Iran, Libido, LifeWay Christian Resources, Lithuania, Lordosis behavior, Lust, Lynn Ponton, Macmillan Publishers, Major trauma, Mali, Mammal, Management of HIV/AIDS, Marital rape, Marquette University Press, Marriage, Marshall Cavendish, Mating, Mayo Clinic, McFarland & Company, McGraw-Hill Education, Meher Baba, Menstrual cycle, Menstruation, Merriam-Webster, Minor (law), Miscarriage, Missionary position, Monash University, Mormonism, Mosby (imprint), Multiple sex partners, Muscle contraction, Myocardial infarction, Nagarjuna, National Center for Health Statistics, National Institute for Health and Care Excellence, National Institutes of Health, National Survey of Sexual Health and Behavior, Neisseria gonorrhoeae, Neonatal conjunctivitis, Nepal, Neuropsychology, Neuroscience, New Hampshire Supreme Court, New York University, New York University Press, Nirvana, No-fault divorce, Non-heterosexual, Non-penetrative sex, Nucleus accumbens, Offspring, One-night stand, Oophorectomy, Oral sex, Ordovician, Orgasm, Out (magazine), Oxford University Press, Oxytocin, Palgrave Macmillan, Paraphilia, Parasitism, Patimokkha, Pearson Education, Pedipalp, Pegging (sexual practice), Pelvic thrust, Penis, Perinatal mortality, Pheromone, Physical attractiveness, Physical intimacy, Policy Press, Pope, Precocious puberty, Pregnancy, Premarital sex, Premature ejaculation, Preterm birth, Primitive (phylogenetics), Prostate cancer, Prostitution, Psychiatry, Purdue University Press, Rape, Ratum sed non consummatum, Rectum, Red Wheel/Weiser/Conari, Reflex arc, Religion, Religion and sexuality, Reproductive health, Reptile, Reward system, Rheumatoid arthritis, Richard M. Lerner, Routledge, Rowman & Littlefield, Rutgers University Press, S&P Global, Saṃsāra, Safe sex, SAGE Publications, Salpingectomy, Same-sex marriage, Same-sex relationship, Scientific American, Selective serotonin reuptake inhibitor, Self-concept, Self-esteem, Self-image, Semen, Senegal, Seven Stories Press, Sex (disambiguation), Sex education, Sex organ, Sex pheromone, Sex position, Sex therapy, Sex toy, Sexual abstinence, Sexual addiction, Sexual arousal, Sexual assault, Sexual frustration, Sexual penetration, Sexual reproduction, Sexual stimulation, Sexuality in older age, Sexually transmitted infection, Shakers, Sildenafil, Simon & Schuster, Sin, Singapore, Slang, Sodomy, Southern Europe, Speculum (medical), Sperm, Sperm bank, Sperm competition, Sperm donation, Spermatophore, Spermatozoon, Spider, Springer Publishing, Springer Science+Business Media, Sri Lanka, Statutory rape, Sterilization (medicine), Sternum (arthropod anatomy), Stillbirth, Stimulus (physiology), Stimulus (psychology), Strap-on dildo, Stroke, Sub-Saharan Africa, Subarachnoid hemorrhage, Surgery, Surrogacy, Syphilis, Tadalafil, Taylor & Francis, Teenage pregnancy, Thailand, The Advocate, The American Heritage Dictionary of the English Language, The Boston Globe, The Church of Jesus Christ of Latter-day Saints, The Journal of Sexual Medicine, TheFreeDictionary.com, Transcription (biology), Transient global amnesia, Tribadism, Unitarian Universalism, United States Department of Health and Human Services, University of Chicago Press, Unsafe abortion, USA Today, Uterus, Vagina, Vaginal lubrication, Vaginismus, Vandenhoeck & Ruprecht, Vardenafil, Vertebrate, Vestibulectomy, Vinaya, Virginia Law Review, Virginity, Virus, Visible Ink Press, Vulgarism, Vulva, Webster's Third New International Dictionary, Wesleyan University Press, Wicca, Wiccan Rede, Wiktionary, Woman on top, World Health Organization, YouGov, Zondervan, Zoology, Zoophilia. 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ABC-CLIO, LLC is a publishing company for academic reference works and periodicals primarily on topics such as history and social sciences for educational and public library settings.
Abortion is the ending of pregnancy by removing an embryo or fetus before it can survive outside the uterus.
Abstinence-only sex education is a form of sex education that teaches not having sex outside of marriage.
Academic Press is an academic book publisher.
The Adhyatmik Ishwariya Vishwa Vidyalaya (Hindi, translates as "Spiritual Godly University". Devanagari: आध्यात्मिक ईश्वरीय विश्वविद्यालय) claims itself to be a reformative splinter group within the Brahma Kumaris religious movement.
Adultery (from Latin adulterium) is extramarital sex that is considered objectionable on social, religious, moral, or legal grounds.
An aedeagus (plural aedeagi) is a reproductive organ of male arthropods through which they secrete sperm from the testes during copulation with a female.
The age of consent is the age below which a minor is considered to be legally incompetent to consent to sexual acts.
Alcohol and sex deals with the effects of the consumption of alcohol on sexual behavior.
Alexander Comfort (10 February 1920 – 26 March 2000) was a British scientist and physician known best for his nonfiction sex manual, The Joy of Sex (1972).
Alfred Charles Kinsey (June 23, 1894 – August 25, 1956) was an American biologist, professor of entomology and zoology, and sexologist who in 1947 founded the Institute for Sex Research at Indiana University, previously known as the Kinsey Institute for Research in Sex, Gender, and Reproduction.
Allyn & Bacon, founded in 1868, is a higher education textbook publisher in the areas of education, humanities and social sciences.
The American Bar Association (ABA), founded August 21, 1878, is a voluntary bar association of lawyers and law students, which is not specific to any jurisdiction in the United States.
The American Broadcasting Company (ABC) is an American commercial broadcast television network that is a flagship property of Disney–ABC Television Group, a subsidiary of the Disney Media Networks division of The Walt Disney Company.
The American Psychiatric Association (APA) is the main professional organization of psychiatrists and trainee psychiatrists in the United States, and the largest psychiatric organization in the world.
The American Urological Association (AUA) is a professional association in the United States for urology professionals.
Amnesty International (commonly known as Amnesty or AI) is a London-based non-governmental organization focused on human rights.
Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person's anus, or anus and rectum, for sexual pleasure.
Anilingus (from the Latin anus + -lingus, from lingere, "to lick", variantly spelled "analingus") is the oral and anal sex act in which a person stimulates the anus of another by using the mouth, including lips, tongue, or teeth.
Animal sexual behaviour takes many different forms, including within the same species.
Annulment is a legal procedure within secular and religious legal systems for declaring a marriage null and void.
Anorgasmia, or Coughlan's syndrome, is a type of sexual dysfunction in which a person cannot achieve orgasm despite adequate stimulation.
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
Antisexualism is opposition or hostility towards sexual behavior and sexuality.
The anus (from Latin anus meaning "ring", "circle") is an opening at the opposite end of an animal's digestive tract from the mouth.
Artificial insemination (AI) is the deliberate introduction of sperm into a female's uterus or cervix for the purpose of achieving a pregnancy through in vivo fertilization by means other than sexual intercourse.
Assisted reproductive technology (ART) is the technology used to achieve pregnancy in procedures such as fertility medication, in vitro fertilization and surrogacy.
Augsburg Fortress is the official publishing house of the Evangelical Lutheran Church in America (ELCA), also publishing for the Evangelical Lutheran Church in Canada (ELCIC) as Augsburg Fortress Canada.
Bacteria (common noun bacteria, singular bacterium) is a type of biological cell.
The Bahá'í Faith (بهائی) is a religion teaching the essential worth of all religions, and the unity and equality of all people.
Baker Publishing Group is a Christian book publisher based in Ada, Michigan.
Barron's Educational Series, Inc. is an American test preparation company, founded in 1939 as a publisher of materials to help students to prepare for college entrance examinations, and that offers online college entrance exam preparation classes.
The Bartholin's glands (also called Bartholin glands or greater vestibular glands) are two pea sized compound racemose glandsManual of Obstetrics.
BBC News is an operational business division of the British Broadcasting Corporation (BBC) responsible for the gathering and broadcasting of news and current affairs.
A bhikkhu (from Pali, Sanskrit: bhikṣu) is an ordained male monastic ("monk") in Buddhism.
A bhikkhunī (Pali) or bhikṣuṇī (Sanskrit) is a fully ordained female monastic in Buddhism.
The Bible (from Koine Greek τὰ βιβλία, tà biblía, "the books") is a collection of sacred texts or scriptures that Jews and Christians consider to be a product of divine inspiration and a record of the relationship between God and humans.
Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.
Birth control, also known as contraception and fertility control, is a method or device used to prevent pregnancy.
Blanchflower v. Blanchflower, 150 N.H. 226, is a landmark decision by the New Hampshire Supreme Court which ruled that sexual relations between two females, one of whom is married, does not constitute adultery because it is not technically sexual intercourse.
Bleeding on probing which is also known as bleeding gums or gingival bleeding is a term used by dentists and dental hygienists when referring to bleeding that is induced by gentle manipulation of the tissue at the depth of the gingival sulcus, or interface between the gingiva and a tooth.
Blood pressure (BP) is the pressure of circulating blood on the walls of blood vessels.
A blood product is any therapeutic substance prepared from human blood.
Body image is a person's perception of the aesthetics or sexual attractiveness of their own body.
The bonobo (Pan paniscus), formerly called the pygmy chimpanzee and less often, the dwarf or gracile chimpanzee, is an endangered great ape and one of the two species making up the genus Pan; the other is Pan troglodytes, or the common chimpanzee.
Botulinum toxin (BTX) or Botox is a neurotoxic protein produced by the bacterium Clostridium botulinum and related species.
The Brahma Kumaris World Spiritual University (Prajapita Brahma Kumaris Ishwariya Vishwa Vidyalaya or BKWSU) is a new religious movement that originated in Hyderabad, Sindh, during the 1930s.
Buddhism is the world's fourth-largest religion with over 520 million followers, or over 7% of the global population, known as Buddhists.
Calendar-based methods are various methods of estimating a woman's likelihood of fertility, based on a record of the length of previous menstrual cycles.
Cambridge University Press (CUP) is the publishing business of the University of Cambridge.
The Canadian Journal of Human Sexuality (CJHS) is a peer-reviewed, scholarly journal focusing on the medical, psychological, social, and educational aspects of human sexuality.
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.
Cardiac arrest is a sudden loss of blood flow resulting from the failure of the heart to effectively pump.
A caregiver or carer is an unpaid or paid member of a person's social network who helps them with activities of daily living.
Carnal knowledge is an archaic or legal euphemism for sexual intercourse.
The Catholic Church, also known as the Roman Catholic Church, is the largest Christian church, with more than 1.299 billion members worldwide.
Celibacy (from Latin, cælibatus") is the state of voluntarily being unmarried, sexually abstinent, or both, usually for religious reasons.
Cengage is an educational content, technology, and services company for the higher education, K-12, professional, and library markets worldwide.
The Centers for Disease Control and Prevention (CDC) is the leading national public health institute of the United States.
Cervical cancer is a cancer arising from the cervix.
Cervical conization (CPT codes 57520 (Cold Knife) and 57522 (Loop Excision)) refers to an excision of a cone-shaped sample of tissue from the mucous membrane of the cervix.
The cervix or cervix uteri (neck of the uterus) is the lower part of the uterus in the human female reproductive system.
Channel 4 is a British public-service television broadcaster that began transmission on 2 November 1982.
The Charge of the Goddess (or Charge of the Star Goddess) is an inspirational text often used in the neopagan religion of Wicca.
Childbirth, also known as labour and delivery, is the ending of a pregnancy by one or more babies leaving a woman's uterus by vaginal passage or C-section.
Chile, officially the Republic of Chile, is a South American country occupying a long, narrow strip of land between the Andes to the east and the Pacific Ocean to the west.
The taxonomical genus Pan (often referred to as chimpanzees or chimps) consists of two extant species: the common chimpanzee and the bonobo.
Chlamydia infection, often simply known as chlamydia, is a sexually transmitted infection caused by the bacterium Chlamydia trachomatis.
ChristianityFrom Ancient Greek Χριστός Khristós (Latinized as Christus), translating Hebrew מָשִׁיחַ, Māšîăḥ, meaning "the anointed one", with the Latin suffixes -ian and -itas.
Civil and political rights are a class of rights that protect individuals' freedom from infringement by governments, social organizations, and private individuals.
A civil union, also referred to by a variety of other names, is a legally recognized arrangement similar to marriage.
Clerical celibacy is the requirement in certain religions that some or all members of the clergy be unmarried.
Clinical Psychology Review is an academic journal that reviews the field of clinical psychology.
The clitoris is a female sex organ present in mammals, ostriches and a limited number of other animals.
In animal anatomy, a cloaca (plural cloacae or) is the posterior orifice that serves as the only opening for the digestive, reproductive, and urinary tracts (if present) of many vertebrate animals, opening at the vent.
Cohabitation is an arrangement where two people who are not married live together.
The coital alignment technique (CAT) sex position, known colloquially as grinding the corn, is used primarily as a variant of the missionary position and is designed to maximize clitoral stimulation during sexual intercourse (coitus).
The Collins English Dictionary is a printed and online dictionary of English.
The combined oral contraceptive pill (COCP), often referred to as the birth control pill or colloquially as "the pill", is a type of birth control that is designed to be taken orally by women.
Concealed ovulation or hidden estrus in a species is the lack of any perceptible change in an adult female (for instance, a change in appearance or scent) when she is "in heat" and near ovulation.
A condom is a sheath-shaped barrier device, used during sexual intercourse to reduce the probability of pregnancy or a sexually transmitted infection (STI).
In many traditions and statutes of civil or religious law, the consummation of a marriage, often called simply consummation, is the first (or first officially credited) act of sexual intercourse between two people, either following their marriage to each other or after a prolonged romantic attraction.
Continuum International Publishing Group was an academic publisher of books with editorial offices in London and New York City.
The Cornell University Press is a division of Cornell University housed in Sage House, the former residence of Henry William Sage.
Coronary circulation is the circulation of blood in the blood vessels of the heart muscle (myocardium).
Courtship is the period of development towards an intimate relationship wherein people (usually a couple) get to know each other and decide if there will be an engagement or other romantic arrangement.
The CRC Press, LLC is a publishing group based in the United States that specializes in producing technical books.
The crime against nature or unnatural act has historically been a legal term in English-speaking states identifying forms of sexual behavior not considered natural or decent and are legally punishable offenses.
Criminal law is the body of law that relates to crime.
Cruelty to animals, also called animal abuse, animal neglect or animal cruelty, is the infliction by omission (animal neglect) or by commission by humans of suffering or harm upon any non-human animal.
Cunnilingus is an oral sex act performed by a person on a female's genitalia (the clitoris, other parts of the vulva or the vagina).
Dapoxetine, marketed as Priligy and Westoxetin, among and other brands, is the first compound developed specially for the treatment of premature ejaculation (PE) in men 18–64 years old.
Death can occur during consensual sex for a number of reasons, generally because of the physical strain of the activity, or because of unusual extenuating circumstances.
Delayed ejaculation, also called retarded ejaculation or inhibited ejaculation, is a man's inability for or persistent difficulty in achieving orgasm, despite typical sexual desire and sexual stimulation.
Depression is a state of low mood and aversion to activity that can affect a person's thoughts, behavior, tendencies, feelings, and sense of well-being.
A developing country (or a low and middle income country (LMIC), less developed country, less economically developed country (LEDC), underdeveloped country) is a country with a less developed industrial base and a low Human Development Index (HDI) relative to other countries.
Developmental disability is a diverse group of chronic conditions that are due to mental or physical impairments that arise before adulthood.
HIV tests are used to detect the presence of the human immunodeficiency virus (HIV), the virus that causes acquired immunodeficiency syndrome (AIDS), in serum, saliva, or urine.
The Diagnostic and Statistical Manual of Mental Disorders (DSM) is published by the American Psychiatric Association (APA) and offers a common language and standard criteria for the classification of mental disorders.
Dilation (or dilatation) and curettage (D&C) refers to the dilation (widening/opening) of the cervix and surgical removal of part of the lining of the uterus and/or contents of the uterus by scraping and scooping (curettage).
A dildo is a sex toy, often explicitly phallic in appearance, intended for sexual penetration or other sexual activity during masturbation or with sex partners.
A disability is an impairment that may be cognitive, developmental, intellectual, mental, physical, sensory, or some combination of these.
Discovery Channel (known as The Discovery Channel from 1985 to 1995, and often referred to as simply Discovery) is an American pay television channel that is the flagship television property of Discovery Inc., a publicly traded company run by CEO David Zaslav.
Divorce, also known as dissolution of marriage, is the termination of a marriage or marital union, the canceling or reorganizing of the legal duties and responsibilities of marriage, thus dissolving the bonds of matrimony between a married couple under the rule of law of the particular country or state.
This article is a general overview of divorce laws around the world.
Dolphins are a widely distributed and diverse group of aquatic mammals.
The Dominican Republic (República Dominicana) is a sovereign state located in the island of Hispaniola, in the Greater Antilles archipelago of the Caribbean region.
Dorland's is the brand name of a family of medical reference works (including dictionaries, spellers and word books, and spell-check software) in various media spanning printed books, CD-ROMs, and online content.
A dragonfly is an insect belonging to the order Odonata, infraorder Anisoptera (from Greek ἄνισος anisos, "uneven" and πτερόν pteron, "wing", because the hindwing is broader than the forewing).
The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) is the 2013 update to the Diagnostic and Statistical Manual of Mental Disorders, the taxonomic and diagnostic tool published by the American Psychiatric Association (APA).
Dyspareunia is painful sexual intercourse due to medical or psychological causes.
Ectopic pregnancy is a complication of pregnancy in which the embryo attaches outside the uterus.
The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms.
Ejaculation is the discharge of semen (normally containing sperm) from the male reproductory tract, usually accompanied by orgasm.
Elsevier is an information and analytics company and one of the world's major providers of scientific, technical, and medical information.
Emasculation of a human male is the removal of the penis and the testicles, the external male sex organs.
An embryo is an early stage of development of a multicellular diploid eukaryotic organism.
An emergency department (ED), also known as an accident & emergency department (A&E), emergency room (ER), emergency ward (EW) or casualty department, is a medical treatment facility specializing in emergency medicine, the acute care of patients who present without prior appointment; either by their own means or by that of an ambulance.
Emotional intimacy is an aspect of interpersonal relationships that varies in intensity from one relationship to another and varies from one time to another, much like physical intimacy.
The endometrium is the inner epithelial layer, along with its mucous membrane, of the mammalian uterus.
HIV/AIDS is a global pandemic.
Erectile dysfunction (ED), also known as impotence, is a type of sexual dysfunction characterized by the inability to develop or maintain an erection of the penis during sexual activity.
An erection (clinically: penile erection or penile tumescence) is a physiological phenomenon in which the penis becomes firm, engorged, and enlarged.
Eroticism (from the Greek ἔρως, eros—"desire") is a quality that causes sexual feelings, as well as a philosophical contemplation concerning the aesthetics of sexual desire, sensuality and romantic love.
The estrous cycle or oestrus cycle (derived from Latin oestrus 'frenzy', originally from Greek οἶστρος oîstros 'gadfly') is the recurring physiological changes that are induced by reproductive hormones in most mammalian therian females.
Ethiopia (ኢትዮጵያ), officially the Federal Democratic Republic of Ethiopia (የኢትዮጵያ ፌዴራላዊ ዲሞክራሲያዊ ሪፐብሊክ, yeʾĪtiyoṗṗya Fēdēralawī Dēmokirasīyawī Rīpebilīk), is a country located in the Horn of Africa.
A euphemism is a generally innocuous word or expression used in place of one that may be found offensive or suggest something unpleasant.
Europa is the official web portal of the European Union (EU), providing information on how the EU works, related news, events, publications and links to websites of institutions, agencies and other bodies.
External fertilization is a male organism’s sperm fertilizing a female organism’s egg outside of the female’s body.
Extramarital sex occurs when a married person engages in sexual activity with someone other than his or her spouse.
A fake orgasm occurs when a person pretends to have an orgasm without actually experiencing one.
The Fallopian tubes, also known as uterine tubes or salpinges (singular salpinx), are two very fine tubes lined with ciliated epithelia, leading from the ovaries of female mammals into the uterus, via the uterotubal junction.
The Federal Bureau of Investigation (FBI), formerly the Bureau of Investigation (BOI), is the domestic intelligence and security service of the United States, and its principal federal law enforcement agency.
Fellatio (also known as fellation, and in slang as blowjob, BJ, giving head, or sucking off) is an oral sex act involving the use of the mouth or throat, which is usually performed by a person on the penis of another person.
Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, conception, fecundation, syngamy and impregnation, is the fusion of gametes to initiate the development of a new individual organism.
Fertility awareness (FA) refers to a set of practices used to determine the fertile and infertile phases of a woman's menstrual cycle.
Fingering is the use of fingers or hands to sexually stimulate the vulva, vagina or the anus.
Fish are gill-bearing aquatic craniate animals that lack limbs with digits.
The five precepts (pañcasīlāni; pañcaśīlāni)) constitute the basic code of ethics undertaken by upāsaka and upāsikā (lay followers) of Buddhism. The precepts in all the traditions are essentially identical and are commitments to abstain from harming living beings, stealing, sexual misconduct, lying and intoxication. Undertaking the five precepts is part of both lay Buddhist initiation and regular lay Buddhist devotional practices. They are not formulated as imperatives, but as training rules that lay people undertake voluntarily to facilitate practice. Additionally, in the Theravāda school of Buddhism, the bhikkhuni lineage died out, and women renunciates practicing Theravadin Buddhism have developed unofficial options for their own practice, dedicating their life to religion, vowing celibacy, living an ascetic life and holding eight or ten precepts.
Flirting or coquetry is a social and sexual behavior involving verbal or written communication, as well as body language, by one person to another, either to suggest interest in a deeper relationship with the other person, or if done playfully, for amusement.
Fluvoxamine, sold under the brand name Luvox among others, is a medication which is used primarily for the treatment of obsessive–compulsive disorder (OCD), and is also used to treat major depressive disorder and anxiety disorders such as panic disorder and post-traumatic stress disorder.
Folklore is the expressive body of culture shared by a particular group of people; it encompasses the traditions common to that culture, subculture or group.
In human sexual behavior, foreplay is a set of emotionally and physically intimate acts between two or more people meant to create sexual arousal and desire for sexual activity.
FBJ murine osteosarcoma viral oncogene homolog B, also known as Finkel-Biskis-Jinkins murine osteosarcoma viral oncogene homolog B, FOSB or FosB, is a protein that, in humans, is encoded by the FOSB gene.
Frot (slang for frottage; ult. from the French verb frotter, "to rub") is a non-penetrative form of male to male sexual activity that usually involves direct penis-to-penis contact.
Fuck is an obscene English-language word, which often refers to the act of sexual intercourse but is also commonly used as an intensifier or to denote disdain.
A gamete (from Ancient Greek γαμετή gamete from gamein "to marry") is a haploid cell that fuses with another haploid cell during fertilization (conception) in organisms that sexually reproduce.
Gay is a term that primarily refers to a homosexual person or the trait of being homosexual.
A gender role, also known as a sex role, is a social role encompassing a range of behaviors and attitudes that are generally considered acceptable, appropriate, or desirable for people based on their actual or perceived sex or sexuality.
A genital ulcer is located on the genital area, usually caused by sexually transmitted diseases such as genital herpes, syphilis, chancroid, or Chlamydia trachomatis.
GLBTQ Legal Advocates & Defenders (GLAD) is a non-profit legal rights organization in the United States.
Gnathostomata are the jawed vertebrates.
Gonorrhea, also spelled gonorrhoea, is a sexually transmitted infection (STI) caused by the bacterium Neisseria gonorrhoeae.
ABC-CLIO/Greenwood is an educational and academic publisher (middle school through university level) which is today part of ABC-CLIO.
Grounds for divorce are regulations specifying the circumstances under which a person will be granted a divorce.
Guilford Publications, Inc. is a New York City-based independent publisher founded in 1973 that specializes in publishing books, journals, and DVDs in psychology, psychiatry, the behavioral sciences, education, and geography.
The Guttmacher Institute is a research and policy organization committed to advancing sexual and reproductive health and rights (SRHR) in the United States and globally.
Harm reduction, or harm minimization, is a range of public health policies designed to lessen the negative social and/or physical consequences associated with various human behaviors, both legal and illegal.
HarperCollins Publishers L.L.C. is one of the world's largest publishing companies and is one of the Big Five English-language publishing companies, alongside Hachette, Macmillan, Penguin Random House, and Simon & Schuster.
A hemipenis (plural hemipenes) is one of a pair of intromittent organs of male squamates (snakes, lizards and worm lizards).
Hepatitis B is an infectious disease caused by the hepatitis B virus (HBV) that affects the liver.
Hinduism is an Indian religion and dharma, or a way of life, widely practised in the Indian subcontinent.
The human immunodeficiency virus (HIV) is a lentivirus (a subgroup of retrovirus) that causes HIV infection and over time acquired immunodeficiency syndrome (AIDS).
Human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with the human immunodeficiency virus (HIV).
HIV/AIDS is a major public health concern and cause of death in many parts of Africa.
The Hominidae, whose members are known as great apes or hominids, are a taxonomic family of primates that includes eight extant species in four genera: Pongo, the Bornean, Sumatran and Tapanuli orangutan; Gorilla, the eastern and western gorilla; Pan, the common chimpanzee and the bonobo; and Homo, which includes modern humans and its extinct relatives (e.g., the Neanderthal), and ancestors, such as Homo erectus.
Homosexual behavior in animals is sexual behavior among non-human species that is interpreted as homosexual or bisexual.
A honeymoon is a vacation taken by newlyweds shortly after a wedding to celebrate their marriage.
A hormone (from the Greek participle “ὁρμῶ”, "to set in motion, urge on") is any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour.
The human anus (from Latin anus meaning "ring", "circle") is the external opening of the rectum.
Human bonding is the process of development of a close, interpersonal relationship between two or more people.
Human papillomavirus infection is an infection by human papillomavirus (HPV).
The human penis is an external male intromittent organ that additionally serves as the urinal duct.
Human sexual activity, human sexual practice or human sexual behaviour is the manner in which humans experience and express their sexuality.
The human sexual response cycle is a four-stage model of physiological responses to sexual stimulation, which, in order of their occurrence, are the excitement phase, plateau phase, orgasmic phase and resolution phase.
A hymenotomy is a medical procedure involving the surgical removal or opening of the hymen.
Hypersexuality is a clinical diagnosis used by mental healthcare professionals to describe extremely frequent or suddenly increased libido.
Hypodermic needle features A hypodermic needle (from Greek ὑπο- (under-), and δέρμα (skin)), one of a category of medical tools which enter the skin, called sharps, is a very thin, hollow tube with a sharp tip that contains a small opening at the pointed end.
Hysterectomy is the surgical removal of the uterus.
The immune system is a host defense system comprising many biological structures and processes within an organism that protects against disease.
Incest is sexual activity between family members or close relatives.
The Indian subcontinent is a southern region and peninsula of Asia, mostly situated on the Indian Plate and projecting southwards into the Indian Ocean from the Himalayas.
Infidelity (synonyms include: cheating, adultery (when married), netorare (NTR), being unfaithful, or having an affair) is a violation of a couple's assumed or stated contract regarding emotional and/or sexual exclusivity.
Infobase Publishing is an American publisher of reference book titles and textbooks geared towards the North American library, secondary school, and university-level curriculum markets.
Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.
Insemination is the deliberate introduction of sperm into a female animal or plant for the purpose of impregnating or fertilizing the female for sexual reproduction.
Instinct or innate behavior is the inherent inclination of a living organism towards a particular complex behavior.
The French Institute for Demographic Studies (INED) is a French research institute specialized in demography and population studies in general.
Intercrural sex (from inter- and Latin crura, "legs"), also known as femoral/interfemoral sex/intercourse, is a type of non-penetrative sex, in which a male places the penis between the receiving partner's thighs (often with lubrication) and thrusts to create friction.
Internal fertilization is the union of an egg cell with a sperm during sexual reproduction inside the body of a parent.
An intrauterine device (IUD), also known as intrauterine contraceptive device (IUCD or ICD) or coil, is a small, often T-shaped birth control device that is inserted into a woman's uterus to prevent pregnancy.
IslamThere are ten pronunciations of Islam in English, differing in whether the first or second syllable has the stress, whether the s is or, and whether the a is pronounced, or (when the stress is on the first syllable) (Merriam Webster).
JAMA: The Journal of the American Medical Association is a peer-reviewed medical journal published 48 times a year by the American Medical Association.
Jaypee Brothers is a medical publisher based in New Delhi, India.
In traditional Judaism, marriage is viewed as a contractual bond commanded by God in which a man and a woman come together to create a relationship in which God is directly involved.
John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.
The Johns Hopkins University Press (also referred to as JHU Press or JHUP) is the publishing division of Johns Hopkins University.
Jones & Bartlett Learning, a division of Ascend Learning, is a provider of instructional, assessment and learning-performance management solutions for the secondary, post-secondary, and professional markets.
The Journal of Sex & Marital Therapy is a peer-reviewed scientific journal published by Routledge (formerly Brunner/Mazel).
Judaism (originally from Hebrew, Yehudah, "Judah"; via Latin and Greek) is the religion of the Jewish people.
The Henry J. Kaiser Family Foundation, or just Kaiser Family Foundation (KFF), is an American non-profit organization, headquartered in San Francisco, California.
A ketubah (pl. ketubot) is a special type of Jewish prenuptial agreement.
The Kinsey Institute for Research in Sex, Gender, and Reproduction (often shortened to The Kinsey Institute) was a nonprofit research institute at Indiana University until November 30, 2016, when it merged with Indiana University "abolishing the 1947 independent incorporation absolutely and completely." It was established in Bloomington, Indiana in 1947.
The labia minora, Latin for smaller lips, singular: labium minus "smaller lip", also known as the inner labia, inner lips, vaginal lips or nymphae, are two flaps of skin on either side of the human vaginal opening in the vulva, situated between the labia majora (the Latin for larger lips; also called outer labia, or outer lips).
Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.
Latin America is a group of countries and dependencies in the Western Hemisphere where Spanish, French and Portuguese are spoken; it is broader than the terms Ibero-America or Hispanic America.
Laurence Steinberg was born in 1952 and is an American university professor of psychology, specializing in child and adolescent psychological development.
Rape is a type of sexual assault initiated by one or more persons against another person without that person's consent.
Lesbian sexual practices are sexual activities involving women who have sex with women, regardless of their sexual orientation.
LGBT in Islam is influenced by the religious, legal, social, and cultural history of the nations with a sizable Muslim population, along with specific passages in the Quran and hadith, statements attributed to the Islamic prophet Muhammad.
Lesbian, gay, bisexual, and transgender (LGBT) persons in Iran face legal challenges not experienced by non-LGBT residents.
Libido, colloquially known as sex drive, is a person's overall sexual drive or desire for sexual activity.
LifeWay Christian Resources, based in Nashville, Tennessee, is the publishing division of the Southern Baptist Convention and church business services provider; one of the largest providers of religious and Christian resources in the world.
Lithuania (Lietuva), officially the Republic of Lithuania (Lietuvos Respublika), is a country in the Baltic region of northern-eastern Europe.
Lordosis behavior, also known as mammalian lordosis (Greek lordōsis, from lordos "bent backward") or presenting, is the naturally occurring body posture for sexual receptivity to copulation present in most mammals including rodents, elephants, and felines.
Lust is a craving, it can take any form such as the lust for sexuality, lust for money or the lust for power.
Macmillan Publishers Ltd (occasionally known as the Macmillan Group) is an international publishing company owned by Holtzbrinck Publishing Group.
Major trauma is any injury that has the potential to cause prolonged disability or death.
Mali, officially the Republic of Mali (République du Mali), is a landlocked country in West Africa, a region geologically identified with the West African Craton.
Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.
The management of HIV/AIDS normally includes the use of multiple antiretroviral drugs in an attempt to control HIV infection.
Marital rape (or spousal rape) is the act of sexual intercourse with one's spouse without the spouse's consent.
Marquette University Press is a university press managed and supported by Marquette University.
Marriage, also called matrimony or wedlock, is a socially or ritually recognised union between spouses that establishes rights and obligations between those spouses, as well as between them and any resulting biological or adopted children and affinity (in-laws and other family through marriage).
Marshall Cavendish is a subsidiary company of Times Publishing Group, the printing and publishing subsidiary of Singapore-based conglomerate Fraser and Neave (which in turn currently owned by ThaiBev) and at present is a publisher of books, business directories and magazines.
In biology, mating (or mateing in British English) is the pairing of either opposite-sex or hermaphroditic organisms, usually for the purposes of sexual reproduction.
The Mayo Clinic is a nonprofit academic medical center based in Rochester, Minnesota focused on integrated clinical practice, education, and research.
McFarland & Company, Inc. is an independent book publisher based in Jefferson, North Carolina that specializes in academic and reference works, as well as general interest adult nonfiction.
McGraw-Hill Education (MHE) is a learning science company and one of the "big three" educational publishers that provides customized educational content, software, and services for pre-K through postgraduate education.
Meher Baba (born Merwan Sheriar Irani; 25 February 1894 – 31 January 1969) was an Indian spiritual master who said he was the Avatar.
The menstrual cycle is the regular natural change that occurs in the female reproductive system (specifically the uterus and ovaries) that makes pregnancy possible.
Menstruation, also known as a period or monthly, is the regular discharge of blood and mucosal tissue (known as menses) from the inner lining of the uterus through the vagina.
Merriam–Webster, Incorporated is an American company that publishes reference books which is especially known for its dictionaries.
In law, a minor is a person under a certain age, usually the age of majority, which legally demarcates childhood from adulthood.
Miscarriage, also known as spontaneous abortion and pregnancy loss, is the natural death of an embryo or fetus before it is able to survive independently.
The missionary position or man-on-top position is a sex position in which generally a woman lies on her back and a man lies on top of her while they face each other and engage in vaginal intercourse.
Monash University is a public research university based in Melbourne, Australia.
Mormonism is the predominant religious tradition of the Latter Day Saint movement of Restorationist Christianity started by Joseph Smith in Western New York in the 1820s and 30s.
Mosby is an academic publisher of textbooks and academic journals based in the United States.
Multiple sex partners (MSP) is the measure and incidence of engaging in sexual activities with two or more people within a specific time period.
Muscle contraction is the activation of tension-generating sites within muscle fibers.
Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle.
Nāgārjuna (c. 150 – c. 250 CE) is widely considered one of the most important Mahayana philosophers.
The National Center for Health Statistics (NCHS) is a principal agency of the U.S. Federal Statistical System which provides statistical information to guide actions and policies to improve the health of the American people.
The National Institute for Health and Care Excellence (NICE) is an executive non-departmental public body of the Department of Health in the United Kingdom, which publishes guidelines in four areas.
The National Institutes of Health (NIH) is the primary agency of the United States government responsible for biomedical and public health research, founded in the late 1870s.
The National Survey of Sexual Health and Behavior is a study of human sexual behavior conducted in the United States by the Center for Sexual Health Promotion at Indiana University in Bloomington.
Neisseria gonorrhoeae, also known as gonococcus (singular), or gonococci (plural) is a species of gram-negative diplococci bacteria isolated by Albert Neisser in 1879.
Neonatal conjunctivitis, also known as ophthalmia neonatorum, is a form of conjunctivitis and a type of neonatal infection contracted by newborns during delivery.
Nepal (नेपाल), officially the Federal Democratic Republic of Nepal (सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल), is a landlocked country in South Asia located mainly in the Himalayas but also includes parts of the Indo-Gangetic Plain.
Neuropsychology is the study of the structure and function of the brain as they relate to specific psychological processes and behaviours.
Neuroscience (or neurobiology) is the scientific study of the nervous system.
The New Hampshire Supreme Court is the supreme court of the U. S. state of New Hampshire and sole appellate court of the state.
New York University (NYU) is a private nonprofit research university based in New York City.
New York University Press (or NYU Press) is a university press that is part of New York University.
(निर्वाण nirvāṇa; निब्बान nibbāna; णिव्वाण ṇivvāṇa) literally means "blown out", as in an oil lamp.
No-fault divorce is a divorce in which the dissolution of a marriage does not require a showing of wrongdoing by either party.
Non-heterosexual is a sexual orientation or sexual identity that is not heterosexual.
Non-penetrative sex or outercourse is sexual activity that usually does not include sexual penetration.
The nucleus accumbens (NAc or NAcc), also known as the accumbens nucleus, or formerly as the nucleus accumbens septi (Latin for nucleus adjacent to the septum) is a region in the basal forebrain rostral to the preoptic area of the hypothalamus.
In biology, offspring are the young born of living organisms, produced either by a single organism or, in the case of sexual reproduction, two organisms.
A one-night stand is a single sexual encounter in which there is an expectation that there shall be no further relations between the sexual participants.
Oophorectomy (from Greek ᾠοφόρος, ōophóros, 'egg-bearing' + ἐκτομή, ektomḗ, 'a cutting out of') is the surgical removal of an ovary or ovaries.
Oral sex, sometimes referred to as oral intercourse, is sexual activity involving the stimulation of the genitalia of a person by another person using the mouth (including the lips, tongue or teeth) or throat.
The Ordovician is a geologic period and system, the second of six periods of the Paleozoic Era.
Orgasm (from Greek ὀργασμός orgasmos "excitement, swelling"; also sexual climax) is the sudden discharge of accumulated sexual excitement during the sexual response cycle, resulting in rhythmic muscular contractions in the pelvic region characterized by sexual pleasure.
Out is an LGBT fashion, entertainment, and lifestyle magazine, with the highest circulation of any LGBT monthly publication in the United States.
Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.
Oxytocin (Oxt) is a peptide hormone and neuropeptide.
Palgrave Macmillan is an international academic and trade publishing company.
Paraphilia (previously known as sexual perversion and sexual deviation) is the experience of intense sexual arousal to atypical objects, situations, fantasies, behaviors, or individuals.
In evolutionary biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.
In Theravada Buddhism, the Patimokkha is the basic code of monastic discipline, consisting of 227 rules for fully ordained monks (bhikkhus) and 311 for nuns (bhikkhunis).
Pearson Education (see also Pearson PLC) is a British-owned education publishing and assessment service to schools and corporations, as well as directly to students.
Pedipalps (commonly shortened to palps or palpi) are the second pair of appendages of chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders.
Pegging is a sexual practice in which a woman performs anal sex on a man by penetrating the man's anus with a strap-on dildo.
The pelvic thrust is the thrusting motion of the pelvic region, which is used for a variety of activities, such as dance or sexual activity.
A penis (plural penises or penes) is the primary sexual organ that male animals use to inseminate sexually receptive mates (usually females and hermaphrodites) during copulation.
Perinatal mortality (PNM), also perinatal death, refers to the death of a fetus or neonate and is the basis to calculate the perinatal mortality rate.
A pheromone (from Ancient Greek φέρω phero "to bear" and hormone, from Ancient Greek ὁρμή "impetus") is a secreted or excreted chemical factor that triggers a social response in members of the same species.
Physical attractiveness is the degree to which a person's physical features are considered aesthetically pleasing or beautiful.
Physical intimacy is sensual proximity or touching.
Policy Press, established in 1996, is an academic publisher based in the Faculty of Social Sciences and Law at the University of Bristol, United Kingdom.
The pope (papa from πάππας pappas, a child's word for "father"), also known as the supreme pontiff (from Latin pontifex maximus "greatest priest"), is the Bishop of Rome and therefore ex officio the leader of the worldwide Catholic Church.
In medicine, precocious puberty is puberty occurring at an unusually early age.
Pregnancy, also known as gestation, is the time during which one or more offspring develops inside a woman.
Premarital sex is sexual activity practiced by people before they are married.
Premature ejaculation (PE) occurs when a man experiences orgasm and expels semen soon after sexual activity and with minimal penile stimulation.
Preterm birth, also known as premature birth, is the birth of a baby at fewer than 37 weeks gestational age.
In phylogenetics, a primitive (or ancestral) character, trait, or feature of a lineage or taxon is one that is inherited from the common ancestor of a clade (or clade group) and has undergone little change since.
Prostate cancer is the development of cancer in the prostate, a gland in the male reproductive system.
Prostitution is the business or practice of engaging in sexual activity in exchange for payment.
Psychiatry is the medical specialty devoted to the diagnosis, prevention and treatment of mental disorders.
Purdue University Press, founded in 1960, is a university press that is part of Purdue University.
Rape is a type of sexual assault usually involving sexual intercourse or other forms of sexual penetration carried out against a person without that person's consent.
The term ratum sed non consummatum (ratified but not consummated) refers to a specific type of marriage in Catholic matrimonial canon law.
The rectum is the final straight portion of the large intestine in humans and some other mammals, and the gut in others.
Red Wheel Weiser Conari, also known in different periods in its history as RedWheel/Weiser, LLC and Samuel Weiser, Inc., is a book publisher with three imprints: Red Wheel, Weiser Books and Conari Books.
A reflex arc is a neural pathway that controls a reflex.
Religion may be defined as a cultural system of designated behaviors and practices, world views, texts, sanctified places, prophecies, ethics, or organizations, that relates humanity to supernatural, transcendental, or spiritual elements.
Each major religion has developed moral codes covering issues of sexuality, morality, ethics etc.
Within the framework of the World Health Organization's (WHO) definition of health as a state of complete physical, mental and social well-being, and not merely the absence of disease or infirmity, reproductive health, or sexual health/hygiene, addresses the reproductive processes, functions and system at all stages of life.
Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.
The reward system is a group of neural structures responsible for incentive salience (i.e., motivation and "wanting", desire, or craving for a reward), associative learning (primarily positive reinforcement and classical conditioning), and positive emotions, particularly ones which involve pleasure as a core component (e.g., joy, euphoria and ecstasy).
Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints.
Richard M. Lerner (born February 23, 1946, in Brooklyn, New York City (accessed November 2, 2011)) is professor of psychology at Tufts University, occupying the Bergstrom Chair in Applied Developmental Science.
Routledge is a British multinational publisher.
Rowman & Littlefield Publishing Group is an independent publishing house founded in 1949.
Rutgers University Press is a nonprofit academic publishing house, operating in New Brunswick, New Jersey under the auspices of Rutgers University.
S&P Global Inc. (prior to April 2016 McGraw Hill Financial, Inc., and prior to 2013 McGraw Hill Companies) is an American publicly traded corporation headquartered in New York City.
Saṃsāra is a Sanskrit word that means "wandering" or "world", with the connotation of cyclic, circuitous change.
Safe sex is sexual activity engaged in by people who have taken precautions to protect themselves against sexually transmitted infections (STIs) such as HIV.
SAGE Publishing is an independent publishing company founded in 1965 in New York by Sara Miller McCune and now based in California.
Salpingectomy refers to the surgical removal of a Fallopian tube.
Same-sex marriage (also known as gay marriage) is the marriage of a same-sex couple, entered into in a civil or religious ceremony.
A same-sex relationship is a relationship between persons of the same sex and can take many forms, from romantic and sexual, to non-romantic homosocially-close relationships.
Scientific American (informally abbreviated SciAm) is an American popular science magazine.
Selective serotonin reuptake inhibitors (SSRIs) are a class of drugs that are typically used as antidepressants in the treatment of major depressive disorder and anxiety disorders.
One's self-concept (also called self-construction, self-identity, self-perspective or self-structure) is a collection of beliefs about oneself.
Self-esteem reflects an individual's overall subjective emotional evaluation of his or her own worth.
Self-image is the mental picture, generally of a kind that is quite resistant to change, that depicts not only details that are potentially available to objective investigation by others (height, weight, hair color, etc.), but also items that have been learned by that person about themself, either from personal experiences or by internalizing the judgments of others.
Semen, also known as seminal fluid, is an organic fluid that may contain spermatozoa.
Senegal (Sénégal), officially the Republic of Senegal, is a country in West Africa.
Seven Stories Press is an independent American publishing company.
Sex may refer to.
Sex education is the instruction of issues relating to human sexuality, including emotional relations and responsibilities, human sexual anatomy, sexual activity, sexual reproduction, age of consent, reproductive health, reproductive rights, safe sex, birth control and sexual abstinence.
A sex organ (or reproductive organ) is any part of an animal's body that is involved in sexual reproduction.
Sex pheromones are pheromones released by an organism to attract an individual of the opposite sex, encourage them to mate with them, or perform some other function closely related with sexual reproduction.
A sex position is a position of the body that an individual or couple people may use for sexual intercourse or other sexual activities.
Sex therapy is a strategy for the improvement of sexual function and treatment of sexual dysfunction.
A sex toy is an object or device that is primarily used to facilitate human sexual pleasure, such as a dildo or vibrator.
Sexual abstinence or sexual restraint is the practice of refraining from some or all aspects of sexual activity for medical, psychological, legal, social, financial, philosophical, moral, or religious reasons.
Sexual addiction, also known as sex addiction, is a proposed state characterized by compulsive participation or engagement in sexual activity, particularly sexual intercourse, despite negative consequences.
Sexual arousal (also sexual excitement) is the arousal of sexual desire, during or in anticipation of sexual activity.
Sexual assault is an act in which a person coerces or physically forces a person to engage in a sexual act against their will.
Sexual frustration or sexual starvation in humans is frustration caused by a discrepancy between a person's desired and achieved sexual activity.
Sexual penetration is the insertion of a body part or other object into a body orifice, such as the vagina, anus or mouth, as part of human sexual activity or animal sexual behavior.
Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm.
Sexual stimulation is any stimulus (including bodily contact) that leads to, enhances and maintains sexual arousal, and may lead to orgasm.
Sexuality in older age concerns the sexual drive, sexual activity, interests, orientation, intimacy, self-esteem, behaviors, and overall sexuality of people in middle age and old age, and the social perceptions concerning sexuality in older age.
Sexually transmitted infections (STI), also referred to as sexually transmitted diseases (STD) or venereal diseases (VD), are infections that are commonly spread by sexual activity, especially vaginal intercourse, anal sex and oral sex.
The United Society of Believers in Christ's Second Appearing, more commonly known as the Shakers, is a millenarian restorationist Christian sect founded in the 18th century in England.
Sildenafil, sold as the brand name Viagra among others, is a medication used to treat erectile dysfunction and pulmonary arterial hypertension.
Simon & Schuster, Inc., a subsidiary of CBS Corporation, is an American publishing company founded in New York City in 1924 by Richard Simon and Max Schuster.
In a religious context, sin is the act of transgression against divine law.
Singapore, officially the Republic of Singapore, is a sovereign city-state and island country in Southeast Asia.
Slang is language (words, phrases, and usages) of an informal register that members of special groups like teenagers, musicians, or criminals favor (over a standard language) in order to establish group identity, exclude outsiders, or both.
Sodomy is generally anal or oral sex between people or sexual activity between a person and a non-human animal (bestiality), but it may also mean any non-procreative sexual activity.
Southern Europe is the southern region of the European continent.
A speculum (Latin for "mirror"; plural specula or speculums) is a medical tool for investigating body orifices, with a form dependent on the orifice for which it is designed.
Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning "seed").
A sperm bank, semen bank or cryobank is a facility or enterprise that collects and stores human sperm from sperm donors for use by women who need donor-provided sperm to achieve pregnancy.
Sperm competition is the competitive process between spermatozoa of two or more different males to fertilize the same egg during sexual reproduction.
Sperm donation is the provision (or "donation") by a man (known as a sperm donor) of his sperm (known as donor sperm), principally for it to be used in the artificial insemination of a woman or women who are not his sexual partners.
A spermatophore or sperm ampulla is a capsule or mass containing spermatozoa created by males of various animal species, especially salamanders and arthropods, and transferred in entirety to the female's ovipore during reproduction.
A spermatozoon (pronounced, alternate spelling spermatozoön; plural spermatozoa; from σπέρμα "seed" and ζῷον "living being") is a motile sperm cell, or moving form of the haploid cell that is the male gamete.
Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom.
Springer Publishing is an American publishing company of academic journals and books, focusing on the fields of nursing, gerontology, psychology, social work, counseling, public health, and rehabilitation (neuropsychology).
Springer Science+Business Media or Springer, part of Springer Nature since 2015, is a global publishing company that publishes books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.
Sri Lanka (Sinhala: ශ්රී ලංකා; Tamil: இலங்கை Ilaṅkai), officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia, located in the Indian Ocean to the southwest of the Bay of Bengal and to the southeast of the Arabian Sea.
In some common law jurisdictions, statutory rape is nonforcible sexual activity in which one of the individuals is below the age of consent (the age required to legally consent to the behavior).
Sterilization (also spelled sterilisation) is any of a number of medical techniques that intentionally leaves a person unable to reproduce.
The sternum (pl. "sterna") is the ventral portion of a segment of an arthropod thorax or abdomen.
Stillbirth is typically defined as fetal death at or after 20 to 28 weeks of pregnancy.
In physiology, a stimulus (plural stimuli) is a detectable change in the internal or external environment.
In psychology, a stimulus is any object or event that elicits a sensory or behavioral response in an organism.
A strap-on dildo (also strap-on, strapon or dildo harness) is a dildo designed to be worn, usually with a harness, during sexual activity.
A stroke is a medical condition in which poor blood flow to the brain results in cell death.
Sub-Saharan Africa is, geographically, the area of the continent of Africa that lies south of the Sahara.
Subarachnoid hemorrhage (SAH) is bleeding into the subarachnoid space—the area between the arachnoid membrane and the pia mater surrounding the brain.
Surgery (from the χειρουργική cheirourgikē (composed of χείρ, "hand", and ἔργον, "work"), via chirurgiae, meaning "hand work") is a medical specialty that uses operative manual and instrumental techniques on a patient to investigate or treat a pathological condition such as a disease or injury, to help improve bodily function or appearance or to repair unwanted ruptured areas.
Surrogacy is a method or agreement whereby a woman agrees to carry a pregnancy for another person or persons, who will become the newborn child's parent(s) after birth.
Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum subspecies pallidum.
Tadalafil (INN) is a PDE5 inhibitor marketed in pill form for treating erectile dysfunction (ED) under the name Cialis, and under the name Adcirca for the treatment of pulmonary arterial hypertension.
Taylor & Francis Group is an international company originating in England that publishes books and academic journals.
Teenage pregnancy, also known as adolescent pregnancy, is pregnancy in females under the age of 20.
Thailand, officially the Kingdom of Thailand and formerly known as Siam, is a unitary state at the center of the Southeast Asian Indochinese peninsula composed of 76 provinces.
The Advocate is an American LGBT-interest magazine, printed bi-monthly and available by subscription.
The American Heritage Dictionary of the English Language (AHD) is an American dictionary of English published by Boston publisher Houghton Mifflin, the first edition of which appeared in 1969.
The Boston Globe (sometimes abbreviated as The Globe) is an American daily newspaper founded and based in Boston, Massachusetts, since its creation by Charles H. Taylor in 1872.
The Church of Jesus Christ of Latter-day Saints (LDS Church), often informally known as the Mormon Church, is a nontrinitarian, Christian restorationist church that is considered by its members to be the restoration of the original church founded by Jesus Christ.
The Journal of Sexual Medicine (JSM) is a peer-reviewed medical journal published on behalf of the International Society for Sexual Medicine.
TheFreeDictionary.com is an American online dictionary and encyclopedia that gathers information from a variety of sources.
Transcription is the first step of gene expression, in which a particular segment of DNA is copied into RNA (especially mRNA) by the enzyme RNA polymerase.
Transient global amnesia (TGA) is a neurological disorder whose key defining characteristic is a temporary but almost total disruption of short-term memory with a range of problems accessing older memories.
Tribadism or tribbing, commonly known by its scissoring position, is a sex act in which a woman rubs her vulva against her partner's body for sexual stimulation, especially for ample stimulation of the clitoris.
Unitarian Universalism (UU) is a liberal religion characterized by a "free and responsible search for truth and meaning".
The United States Department of Health and Human Services (HHS), also known as the Health Department, is a cabinet-level department of the U.S. federal government with the goal of protecting the health of all Americans and providing essential human services.
The University of Chicago Press is the largest and one of the oldest university presses in the United States.
An unsafe abortion is the termination of a pregnancy by people lacking the necessary skills, or in an environment lacking minimal medical standards, or both.
USA Today is an internationally distributed American daily, middle-market newspaper that serves as the flagship publication of its owner, the Gannett Company.
The uterus (from Latin "uterus", plural uteri) or womb is a major female hormone-responsive secondary sex organ of the reproductive system in humans and most other mammals.
In mammals, the vagina is the elastic, muscular part of the female genital tract.
Vaginal lubrication is a naturally produced fluid that lubricates a woman's vagina.
Vaginismus, sometimes called vaginism, is a condition that affects a woman's ability to engage in vaginal penetration, including sexual intercourse, manual penetration, insertion of tampons or menstrual cups, and the penetration involved in gynecological examinations (pap tests).
Vandenhoeck & Ruprecht (V&R) is a scholarly publishing house based in Göttingen, Germany.
Vardenafil (INN) is a PDE5 inhibitor used for treating erectile dysfunction that is sold under the trade names Levitra (Bayer AG, GSK, and SP), Staxyn in India, and Vivanza in Italy.
Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones).
A vestibulectomy is a gynecological surgical procedure that can be used to treat vulvar pain and vulvar vestibulitis.
The Vinaya (Pali and Sanskrit, literally meaning "leading out", "education", "discipline") is the regulatory framework for the sangha or monastic community of Buddhism based on the canonical texts called the Vinaya Pitaka.
The Virginia Law Review is a law review edited and published by students at University of Virginia School of Law.
Virginity is the state of a person who has never engaged in sexual intercourse.
A virus is a small infectious agent that replicates only inside the living cells of other organisms.
Visible Ink Press, LLC is a publisher of popular reference works.
In the study of language and literary style, a vulgarism is an expression or usage considered non-standard or characteristic of uneducated speech or writing.
The vulva (wrapper, covering, plural vulvae or vulvas) consists of the external female sex organs.
Webster's Third New International Dictionary of the English Language, Unabridged (commonly known as Webster's Third, or W3) was published in September 1961.
Wesleyan University Press is a university press that is part of Wesleyan University in Middletown, Connecticut.
Wicca, also termed Pagan Witchcraft, is a contemporary Pagan new religious movement.
The Wiccan Rede is a statement that provides the key moral system in the Neopagan religion of Wicca and certain other related Witchcraft-based faiths.
Wiktionary is a multilingual, web-based project to create a free content dictionary of all words in all languages.
Woman on top, also called the cowgirl or riding position, is a group of sex positions in which the man lies on his back or sits, the woman straddles him facing either forward or back, and the man inserts his erect penis into the woman's vagina or anus.
The World Health Organization (WHO; French: Organisation mondiale de la santé) is a specialized agency of the United Nations that is concerned with international public health.
YouGov is an international Internet-based market research and data analytics firm, headquartered in the UK, with operations in Europe, North America, the Middle East and Asia-Pacific.
Zondervan is an international Christian media and publishing company located in Grand Rapids, Michigan.
Zoology or animal biology is the branch of biology that studies the animal kingdom, including the structure, embryology, evolution, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems.
Zoophilia is a paraphilia involving a sexual fixation on non-human animals.
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