Table of Contents
97 relations: American Dental Association, Ancient Greek, Area of a triangle, Arrow (symbol), Astronomy, Birefringence, Black–Scholes model, Calculus, CCR5, Chemical shift, Chevron (insignia), Compound interest, Convex hull, Covalent bond, Cramer's rule, Cyrillic script, D, Dalet, De (Cyrillic), Declination, Defendant, Deflection (engineering), Deletion (genetics), Delta Air Lines, Delta baryon, Derivative, Deuterium, Differential (mathematics), Dirac delta function, Discriminant, Electric current, Electrical reactance, Electronegativity, Environmental isotopes, Equatorial coordinate system, Eth, F-ATPase, Finite-state machine, Fricative, Functional calculus, Functional derivative, Genetics, Greek alphabet, Greek letters used in mathematics, science, and engineering, Greek numerals, Greeks (finance), Herodotus, Infinitesimal, Irish language, Isomer, ... Expand index (47 more) »
- Greek letters
American Dental Association
The American Dental Association (ADA) is an American professional association established in 1859 which has more than 161,000 members.
See Delta (letter) and American Dental Association
Ancient Greek
Ancient Greek (Ἑλληνῐκή) includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC.
See Delta (letter) and Ancient Greek
Area of a triangle
In geometry, calculating the area of a triangle is an elementary problem encountered often in many different situations.
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Arrow (symbol)
An arrow is a graphical symbol, such as ← or →, or a pictogram, used to point or indicate direction.
See Delta (letter) and Arrow (symbol)
Astronomy
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos.
See Delta (letter) and Astronomy
Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light.
See Delta (letter) and Birefringence
Black–Scholes model
The Black–Scholes or Black–Scholes–Merton model is a mathematical model for the dynamics of a financial market containing derivative investment instruments.
See Delta (letter) and Black–Scholes model
Calculus
Calculus is the mathematical study of continuous change, in the same way that geometry is the study of shape, and algebra is the study of generalizations of arithmetic operations.
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CCR5
C-C chemokine receptor type 5, also known as CCR5 or CD195, is a protein on the surface of white blood cells that is involved in the immune system as it acts as a receptor for chemokines.
Chemical shift
In nuclear magnetic resonance (NMR) spectroscopy, the chemical shift is the resonant frequency of an atomic nucleus relative to a standard in a magnetic field.
See Delta (letter) and Chemical shift
Chevron (insignia)
A chevron (also spelled cheveron, especially in older documents) is a V-shaped mark or symbol, often inverted.
See Delta (letter) and Chevron (insignia)
Compound interest
Compound interest is interest accumulated from a principal sum and previously accumulated interest.
See Delta (letter) and Compound interest
Convex hull
In geometry, the convex hull, convex envelope or convex closure of a shape is the smallest convex set that contains it.
See Delta (letter) and Convex hull
Covalent bond
A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.
See Delta (letter) and Covalent bond
Cramer's rule
In linear algebra, Cramer's rule is an explicit formula for the solution of a system of linear equations with as many equations as unknowns, valid whenever the system has a unique solution.
See Delta (letter) and Cramer's rule
Cyrillic script
The Cyrillic script, Slavonic script or simply Slavic script is a writing system used for various languages across Eurasia.
See Delta (letter) and Cyrillic script
D
D, or d, is the fourth letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide.
Dalet
Dalet (also spelled Daleth or Daled) is the fourth letter of the Semitic abjads, including Phoenician dālt 𐤃, Hebrew dālet ד, Aramaic dālaṯ 𐡃, Syriac dālaṯ ܕ, and Arabic dāl د (in abjadi order; 8th in modern order).
De (Cyrillic)
De (Д д; italic: Д д) is a letter of the Cyrillic script.
See Delta (letter) and De (Cyrillic)
Declination
In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.
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Defendant
In court proceedings, a defendant is a person or object who is the party either accused of committing a crime in criminal prosecution or against whom some type of civil relief is being sought in a civil case.
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Deflection (engineering)
In structural engineering, deflection is the degree to which a part of a long structural element (such as beam) is deformed laterally (in the direction transverse to its longitudinal axis) under a load.
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Deletion (genetics)
In genetics, a deletion (also called gene deletion, deficiency, or deletion mutation) (sign: Δ) is a mutation (a genetic aberration) in which a part of a chromosome or a sequence of DNA is left out during DNA replication.
See Delta (letter) and Deletion (genetics)
Delta Air Lines
Delta Air Lines is one of the major airlines of the United States and a legacy carrier headquartered in Atlanta, Georgia.
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Delta baryon
The Delta baryons (or baryons, also called Delta resonances) are a family of subatomic particle made of three up or down quarks (u or d quarks), the same constituent quarks that make up the more familiar protons and neutrons.
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Derivative
The derivative is a fundamental tool of calculus that quantifies the sensitivity of change of a function's output with respect to its input.
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Deuterium
Deuterium (hydrogen-2, symbol H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other is protium, or hydrogen-1).
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Differential (mathematics)
In mathematics, differential refers to several related notions derived from the early days of calculus, put on a rigorous footing, such as infinitesimal differences and the derivatives of functions.
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Dirac delta function
In mathematical analysis, the Dirac delta function (or distribution), also known as the unit impulse, is a generalized function on the real numbers, whose value is zero everywhere except at zero, and whose integral over the entire real line is equal to one.
See Delta (letter) and Dirac delta function
Discriminant
In mathematics, the discriminant of a polynomial is a quantity that depends on the coefficients and allows deducing some properties of the roots without computing them.
See Delta (letter) and Discriminant
Electric current
An electric current is a flow of charged particles, such as electrons or ions, moving through an electrical conductor or space.
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Electrical reactance
In electrical circuits, reactance is the opposition presented to alternating current by inductance and capacitance.
See Delta (letter) and Electrical reactance
Electronegativity
Electronegativity, symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical bond.
See Delta (letter) and Electronegativity
Environmental isotopes
The environmental isotopes are a subset of isotopes, both stable and radioactive, which are the object of isotope geochemistry.
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Equatorial coordinate system
The equatorial coordinate system is a celestial coordinate system widely used to specify the positions of celestial objects.
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Eth
Eth (uppercase: Ð, lowercase: ð; also spelled edh or eð), known as ðæt in Old English, is a letter used in Old English, Middle English, Icelandic, Faroese (in which it is called edd), and Elfdalian.
F-ATPase
F-ATPase, also known as F-Type ATPase, is an ATPase/synthase found in bacterial plasma membranes, in mitochondrial inner membranes (in oxidative phosphorylation, where it is known as Complex V), and in chloroplast thylakoid membranes.
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Finite-state machine
A finite-state machine (FSM) or finite-state automaton (FSA, plural: automata), finite automaton, or simply a state machine, is a mathematical model of computation.
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Fricative
A fricative is a consonant produced by forcing air through a narrow channel made by placing two articulators close together.
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Functional calculus
In mathematics, a functional calculus is a theory allowing one to apply mathematical functions to mathematical operators.
See Delta (letter) and Functional calculus
Functional derivative
In the calculus of variations, a field of mathematical analysis, the functional derivative (or variational derivative) relates a change in a functional (a functional in this sense is a function that acts on functions) to a change in a function on which the functional depends.
See Delta (letter) and Functional derivative
Genetics
Genetics is the study of genes, genetic variation, and heredity in organisms.
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Greek alphabet
The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. Delta (letter) and Greek alphabet are Greek letters.
See Delta (letter) and Greek alphabet
Greek letters used in mathematics, science, and engineering
Greek letters are used in mathematics, science, engineering, and other areas where mathematical notation is used as symbols for constants, special functions, and also conventionally for variables representing certain quantities. Delta (letter) and Greek letters used in mathematics, science, and engineering are Greek letters.
See Delta (letter) and Greek letters used in mathematics, science, and engineering
Greek numerals
Greek numerals, also known as Ionic, Ionian, Milesian, or Alexandrian numerals, are a system of writing numbers using the letters of the Greek alphabet.
See Delta (letter) and Greek numerals
Greeks (finance)
In mathematical finance, the Greeks are the quantities (known in calculus as partial derivatives; first-order or higher) representing the sensitivity of the price of a derivative instrument such as an option to changes in one or more underlying parameters on which the value of an instrument or portfolio of financial instruments is dependent.
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Herodotus
Herodotus (Ἡρόδοτος||; BC) was a Greek historian and geographer from the Greek city of Halicarnassus, part of the Persian Empire (now Bodrum, Turkey) and a later citizen of Thurii in modern Calabria, Italy.
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Infinitesimal
In mathematics, an infinitesimal number is a non-zero quantity that is closer to 0 than any non-zero real number is.
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Irish language
Irish (Standard Irish: Gaeilge), also known as Irish Gaelic or simply Gaelic, is a Goidelic language of the Insular Celtic branch of the Celtic language group, which is a part of the Indo-European language family.
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Isomer
In chemistry, isomers are molecules or polyatomic ions with identical molecular formula – that is, the same number of atoms of each element – but distinct arrangements of atoms in space.
Isotope geochemistry
Isotope geochemistry is an aspect of geology based upon the study of natural variations in the relative abundances of isotopes of various elements.
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Isotopes of hydrogen
Hydrogen (1H) has three naturally occurring isotopes, sometimes denoted,, and.
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James David Forbes
James David Forbes (1809–1868) was a Scottish physicist and glaciologist who worked extensively on the conduction of heat and seismology.
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John Dee
John Dee (13 July 1527 – 1608 or 1609) was an English mathematician, astronomer, teacher, astrologer, occultist, and alchemist.
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Kronecker delta
In mathematics, the Kronecker delta (named after Leopold Kronecker) is a function of two variables, usually just non-negative integers.
See Delta (letter) and Kronecker delta
Laplace operator
In mathematics, the Laplace operator or Laplacian is a differential operator given by the divergence of the gradient of a scalar function on Euclidean space.
See Delta (letter) and Laplace operator
Latin
Latin (lingua Latina,, or Latinum) is a classical language belonging to the Italic branch of the Indo-European languages.
Latin alphabet
The Latin alphabet, also known as the Roman alphabet, is the collection of letters originally used by the ancient Romans to write the Latin language.
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Latin delta
Latin delta (ẟ, lower-case only) is a Latin letter similar in appearance to the Greek lowercase letter delta (δ), but derived from the handwritten Latin lowercase d. It is also known as "script d" or "insular d" and is used in medieval Welsh transcriptions for the sound (English th in this) represented by "dd" in Modern Welsh.
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Limit of a function
Although the function is not defined at zero, as becomes closer and closer to zero, becomes arbitrarily close to 1.
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List of legal abbreviations
This is a list of abbreviations used in law and legal documents.
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Locant
In the nomenclature of organic chemistry, a locant is a term to indicate the position of a functional group or substituent within a molecule.
Macroeconomics
Macroeconomics is a branch of economics that deals with the performance, structure, behavior, and decision-making of an economy as a whole.
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Major seventh chord
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Modern Greek
Modern Greek (Νέα Ελληνικά, Néa Elliniká, or Κοινή Νεοελληνική Γλώσσα, Kiní Neoellinikí Glóssa), generally referred to by speakers simply as Greek (Ελληνικά, italic), refers collectively to the dialects of the Greek language spoken in the modern era, including the official standardized form of the language sometimes referred to as Standard Modern Greek.
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Nabla symbol
∇ The nabla symbol The nabla is a triangular symbol resembling an inverted Greek delta:Indeed, it is called (ανάδελτα) in Modern Greek.
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Nile
The Nile (also known as the Nile River) is a major north-flowing river in northeastern Africa.
Nile Delta
The Nile Delta (دلتا النيل, or simply الدلتا) is the delta formed in Lower Egypt where the Nile River spreads out and drains into the Mediterranean Sea.
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Nuclear magnetic resonance
Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are perturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a frequency characteristic of the magnetic field at the nucleus.
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Old Irish
Old Irish, also called Old Gaelic (Goídelc, Ogham script: ᚌᚑᚔᚇᚓᚂᚉ; Sean-Ghaeilge; Seann-Ghàidhlig; Shenn Yernish or Shenn Ghaelg), is the oldest form of the Goidelic/Gaelic language for which there are extensive written texts.
See Delta (letter) and Old Irish
Optical mineralogy
Optical mineralogy is the study of minerals and rocks by measuring their optical properties.
See Delta (letter) and Optical mineralogy
Organic compound
Some chemical authorities define an organic compound as a chemical compound that contains a carbon–hydrogen or carbon–carbon bond; others consider an organic compound to be any chemical compound that contains carbon.
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Oxygen-16
Oxygen-16 (symbol: 16O or) is a nuclide.
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Oxygen-18
Oxygen-18 (Ω) is a natural, stable isotope of oxygen and one of the environmental isotopes.
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Partial charge
In atomic physics, a partial charge (or net atomic charge) is a non-integer charge value when measured in elementary charge units.
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Partial derivative
In mathematics, a partial derivative of a function of several variables is its derivative with respect to one of those variables, with the others held constant (as opposed to the total derivative, in which all variables are allowed to vary).
See Delta (letter) and Partial derivative
Philosophical logic
Understood in a narrow sense, philosophical logic is the area of logic that studies the application of logical methods to philosophical problems, often in the form of extended logical systems like modal logic.
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Phoenician alphabet
The Phoenician alphabet is an abjad (consonantal alphabet) used across the Mediterranean civilization of Phoenicia for most of the 1st millennium BC.
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Polynomial
In mathematics, a polynomial is a mathematical expression consisting of indeterminates (also called variables) and coefficients, that involves only the operations of addition, subtraction, multiplication and exponentiation to nonnegative integer powers, and has a finite number of terms.
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Proceedings of the Royal Society
Proceedings of the Royal Society is the main research journal of the Royal Society.
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Proofreading
Proofreading is an iterative process of comparing galley proofs against the original manuscripts or graphic artworks to identify transcription errors in the typesetting process.
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Quadratic equation
In mathematics, a quadratic equation is an equation that can be rearranged in standard form as ax^2 + bx + c.
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Recurrence relation
In mathematics, a recurrence relation is an equation according to which the nth term of a sequence of numbers is equal to some combination of the previous terms.
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River delta
A river delta is a landform shaped like a triangle, created by the deposition of sediment that is carried by a river and enters slower-moving or stagnant water.
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Romanization of Greek
Romanization of Greek is the transliteration (letter-mapping) or transcription (sound-mapping) of text from the Greek alphabet into the Latin alphabet.
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SARS-CoV-2 Delta variant
The Delta variant (B.1.617.2) was a variant of SARS-CoV-2, the virus that causes COVID-19.
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Simplex
In geometry, a simplex (plural: simplexes or simplices) is a generalization of the notion of a triangle or tetrahedron to arbitrary dimensions.
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Simplicial complex
In mathematics, a simplicial complex is a set composed of points, line segments, triangles, and their ''n''-dimensional counterparts (see illustration).
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Solow–Swan model
The Solow–Swan model or exogenous growth model is an economic model of long-run economic growth.
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Symmetric difference
In mathematics, the symmetric difference of two sets, also known as the disjunctive union and set sum, is the set of elements which are in either of the sets, but not in their intersection.
See Delta (letter) and Symmetric difference
Th (digraph)
Th is a digraph in the Latin script.
See Delta (letter) and Th (digraph)
Thorn (letter)
Thorn or þorn (Þ, þ) is a letter in the Old English, Old Norse, Old Swedish and modern Icelandic alphabets, as well as modern transliterations of the Gothic alphabet, Middle Scots, and some dialects of Middle English.
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Uncertainty
Uncertainty or incertitude refers to epistemic situations involving imperfect or unknown information.
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Uncertainty principle
The uncertainty principle, also known as Heisenberg's indeterminacy principle, is a fundamental concept in quantum mechanics.
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Vertex (graph theory)
In discrete mathematics, and more specifically in graph theory, a vertex (plural vertices) or node is the fundamental unit of which graphs are formed: an undirected graph consists of a set of vertices and a set of edges (unordered pairs of vertices), while a directed graph consists of a set of vertices and a set of arcs (ordered pairs of vertices).
See Delta (letter) and Vertex (graph theory)
Voiced dental fricative
The voiced dental fricative is a consonant sound used in some spoken languages.
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Voltage
Voltage, also known as (electrical) potential difference, electric pressure, or electric tension is the difference in electric potential between two points.
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See also
Greek letters
- Alpha
- Alpha and Omega
- Beta
- Chi (letter)
- Chi Rho
- Delta (letter)
- Digamma
- Epsilon
- Eta
- Gamma
- Greek alphabet
- Greek letters used in mathematics, science, and engineering
- Greek ligatures
- Heta
- Iota
- Iota subscript
- Kai (conjunction)
- Kappa
- Koppa (letter)
- Lambda
- List of Greek letters
- Movable nu
- Mu (letter)
- Nu (letter)
- Omega
- Omicron
- Phi
- Pi (letter)
- Psi (Greek)
- Rho
- Sampi
- San (letter)
- Sho (letter)
- Sigma
- Tau
- Theta
- Theta nigrum
- Upsilon
- Xi (letter)
- Zeta
References
Also known as 4th letter of the Greek alphabet, Delta (Greek letter), Delta (Greek), Delta letter, Delta shape, Delta sign, Delta-shaped, Fourth letter of the Greek alphabet, Greek letter delta, Thelta, \delta, Δ, Δέλτα, .