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Trench

Index Trench

A trench is a type of excavation or depression in the ground that is generally deeper than it is wide (as opposed to a wider gully, or ditch), and narrow compared with its length (as opposed to a simple hole). [1]

49 relations: Acute necrotizing ulcerative gingivitis, Aleutian Trench, American Civil War, Battle of the Trench, Canal, Castle, Centers for Disease Control and Prevention, Civil engineering, Controlled-access highway, Crimean War, Cut (earthmoving), Cut and fill, De facto, Ditch, Ditch (fortification), Erosion, Excavation (archaeology), Firearm, Foundation (engineering), Geology, Glacier, Gully, Highway, Houghton Mifflin Harcourt, Infrastructure, List of expeditions of Muhammad, Mariana Trench, Moat, National Institute for Occupational Safety and Health, Oceanic trench, Pipeline transport, Plate tectonics, Public utility, Rail transport, Rift valley, Road, Ruins, Stratum, Subduction, Telephone line, Trench coat, Trench foot, Trench shoring, Tunnel, Underground city, Underground living, Utility tunnel, Water supply network, World War I.

Acute necrotizing ulcerative gingivitis

Acute necrotizing ulcerative gingivitis (ANUG; colloquially known as trench mouth) is a common, non-contagious infection of the gums with sudden onset.

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Aleutian Trench

The Aleutian Trench (or Aleutian Trough) is an oceanic trench along a convergent plate boundary which runs along the southern coastline of Alaska and the Aleutian islands.

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American Civil War

The American Civil War (also known by other names) was a war fought in the United States from 1861 to 1865.

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Battle of the Trench

The Battle of the Trench (Ghazwat al-Khandaq) also known as the Battle of the Confederates (Ghazwat al-Ahzab), was a 30-day-long siege of Yathrib (now Medina) by Arab and Jewish tribes. The strength of the confederate armies is estimated around 10,000 men with six hundred horses and some camels, while the Medinan defenders numbered 3,000. The largely outnumbered defenders of Medina, mainly Muslims led by Islamic prophet Muhammad, dug a trench on the suggestion of Salman Farsi, which together with Medina's natural fortifications, rendered the confederate cavalry (consisting of horses and camels) useless, locking the two sides in a stalemate. Hoping to make several attacks at once, the confederates persuaded the Muslim-allied Medinan Jews, Banu Qurayza, to attack the city from the south. However, Muhammad's diplomacy derailed the negotiations, and broke up the confederacy against him. The well-organised defenders, the sinking of confederate morale, and poor weather conditions caused the siege to end in a fiasco. The siege was a "battle of wits", in which the Muslims tactically overcame their opponents while suffering very few casualties. Efforts to defeat the Muslims failed, and Islam became influential in the region. As a consequence, the Muslim army besieged the area of the Banu Qurayza tribe, leading to their surrender and enslavement or execution. The defeat caused the Meccans to lose their trade and much of their prestige.

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Canal

Canals, or navigations, are human-made channels, or artificial waterways, for water conveyance, or to service water transport vehicles.

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Castle

A castle (from castellum) is a type of fortified structure built during the Middle Ages by predominantly the nobility or royalty and by military orders.

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Centers for Disease Control and Prevention

The Centers for Disease Control and Prevention (CDC) is the leading national public health institute of the United States.

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Civil engineering

Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, and railways.

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Controlled-access highway

A controlled-access highway is a type of highway which has been designed for high-speed vehicular traffic, with all traffic flow and ingress/egress regulated.

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Crimean War

The Crimean War (or translation) was a military conflict fought from October 1853 to February 1856 in which the Russian Empire lost to an alliance of the Ottoman Empire, France, Britain and Sardinia.

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Cut (earthmoving)

In civil engineering, a cut or cutting is where soil or rock material from a relative rise (elevated landscape) to an earlier section of the route is cut out to make way for a further section of the route, whether canal, road or railway line.

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Cut and fill

In earthmoving, cut and fill is the process of constructing a railway, road or canal whereby the amount of material from cuts roughly matches the amount of fill needed to make nearby embankments, so minimizing the amount of construction labor.

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De facto

In law and government, de facto (or;, "in fact") describes practices that exist in reality, even if not legally recognised by official laws.

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Ditch

A ditch is a small to moderate depression created to channel water.

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Ditch (fortification)

A ditch in military engineering is an obstacle, designed to slow down or break up an attacking force, while a trench is intended to provide cover to the defenders.

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Erosion

In earth science, erosion is the action of surface processes (such as water flow or wind) that remove soil, rock, or dissolved material from one location on the Earth's crust, and then transport it to another location (not to be confused with weathering which involves no movement).

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Excavation (archaeology)

In archaeology, excavation is the exposure, processing and recording of archaeological remains.

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Firearm

A firearm is a portable gun (a barreled ranged weapon) that inflicts damage on targets by launching one or more projectiles driven by rapidly expanding high-pressure gas produced by exothermic combustion (deflagration) of propellant within an ammunition cartridge.

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Foundation (engineering)

A foundation (or, more commonly, base) is the element of an architectural structure which connects it to the ground, and transfers loads from the structure to the ground.

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Geology

Geology (from the Ancient Greek γῆ, gē, i.e. "earth" and -λoγία, -logia, i.e. "study of, discourse") is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time.

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Glacier

A glacier is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries.

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Gully

A gully is a landform created by running water, eroding sharply into soil, typically on a hillside.

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Highway

A highway is any public or private road or other public way on land.

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Houghton Mifflin Harcourt

Houghton Mifflin Harcourt (HMH) is an educational and trade publisher in the United States.

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Infrastructure

Infrastructure is the fundamental facilities and systems serving a country, city, or other area, including the services and facilities necessary for its economy to function.

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List of expeditions of Muhammad

The list of expeditions of Muhammad includes the expeditions undertaken by the Muslim community during the lifetime of the Islamic prophet Muhammad.

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Mariana Trench

The Mariana Trench or Marianas Trench is the deepest part of the world's oceans.

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Moat

A moat is a deep, broad ditch, either dry or filled with water, that is dug and surrounds a castle, fortification, building or town, historically to provide it with a preliminary line of defence.

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National Institute for Occupational Safety and Health

The National Institute for Occupational Safety and Health (NIOSH) is the United States federal agency responsible for conducting research and making recommendations for the prevention of work-related injury and illness.

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Oceanic trench

Oceanic trenches are topographic depressions of the sea floor, relatively narrow in width, but very long.

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Pipeline transport

Pipeline transport is the transportation of goods or material through a pipe.

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Plate tectonics

Plate tectonics (from the Late Latin tectonicus, from the τεκτονικός "pertaining to building") is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago.

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Public utility

A public utility (usually just utility) is an organization that maintains the infrastructure for a public service (often also providing a service using that infrastructure).

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Rail transport

Rail transport is a means of transferring of passengers and goods on wheeled vehicles running on rails, also known as tracks.

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Rift valley

A rift valley is a linear-shaped lowland between several highlands or mountain ranges created by the action of a geologic rift or fault.

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Road

A road is a thoroughfare, route, or way on land between two places that has been paved or otherwise improved to allow travel by foot or some form of conveyance, including a motor vehicle, cart, bicycle, or horse.

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Ruins

Ruins are the remains of human-made architecture: structures that were once intact have fallen, as time went by, into a state of partial or total disrepair, due to lack of maintenance or deliberate acts of destruction.

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Stratum

In geology and related fields, a stratum (plural: strata) is a layer of sedimentary rock or soil, or igneous rock that were formed at the Earth's surface, with internally consistent characteristics that distinguish it from other layers.

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Subduction

Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced or sinks due to gravity into the mantle.

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Telephone line

A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.

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Trench coat

A trench coat or trenchcoat is a raincoat made of waterproof heavy-duty cotton gabardine drill, leather, or poplin.

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Trench foot

Trench foot is a medical condition caused by prolonged exposure of the feet to damp, unsanitary, and cold conditions.

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Trench shoring

Trench shoring is the process of bracing the walls of a trench to prevent collapse and cave-ins.

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Tunnel

A tunnel is an underground passageway, dug through the surrounding soil/earth/rock and enclosed except for entrance and exit, commonly at each end.

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Underground city

An underground city is a series of linked subterranean spaces that may provide a defensive refuge; a place for living, working or shopping; a transit system; mausolea; wine or storage cellars; cisterns or drainage channels; or several of these.

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Underground living

Underground living refers to living below the ground's surface, whether in naturally occurring caves or in built structures.

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Utility tunnel

A utility tunnel, utility corridor, or utilidor is a passage built underground or above ground to carry utility lines such as electricity, steam, water supply pipes, and sewer pipes.

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Water supply network

A water supply system or water supply network is a system of engineered hydrologic and hydraulic components which provide water supply.

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World War I

World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.

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Redirects here:

Defensive trenches, Trench (military), Trench method, Trenches.

References

[1] https://en.wikipedia.org/wiki/Trench

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