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Weir vs. Dam — What's the Difference?

Weir vs. Dam — What's the Difference?

Difference Between Weir and Dam

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Weir

A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs.
Mar 24, 2022

Dam

A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability.
Mar 24, 2022

Weir

A fence or wattle placed in a stream to catch or retain fish.
Mar 24, 2022

Dam

A barrier constructed to hold back water and raise its level, forming a reservoir used to generate electricity or as a water supply
The dam burst after torrential rain
The Hoover Dam
Mar 24, 2022

Weir

A dam placed across a river or canal to raise or divert the water, as for a millrace, or to regulate or measure the flow.
Mar 24, 2022
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Dam

A rubber sheet used to keep saliva from the teeth during dental operations, or as a prophylactic device during cunnilingus and anilingus.
Mar 24, 2022

Weir

An adjustable dam placed across a river to regulate the flow of water downstream.
Mar 24, 2022

Dam

The female parent of an animal, especially a domestic mammal.
Mar 24, 2022

Weir

A fence placed across a river to catch fish.
Mar 24, 2022

Dam

Build a dam across (a river or lake)
The river was dammed to form Lake Powell
Mar 24, 2022

Weir

(obsolete) Seaweed.
Mar 24, 2022

Dam

A barrier constructed across a waterway to control the flow or raise the level of water.
Mar 24, 2022

Weir

A dam in a river to stop and raise the water, for the purpose of conducting it to a mill, forming a fish pond, or the like.
Mar 24, 2022

Dam

A body of water controlled by such a barrier.
Mar 24, 2022

Weir

A fence of stakes, brushwood, or the like, set in a stream, tideway, or inlet of the sea, for taking fish.
Mar 24, 2022

Dam

A barrier against the passage of liquid or loose material, as a rubber sheet used in dentistry to isolate one or more teeth from the rest of the mouth.
Mar 24, 2022

Weir

A long notch with a horizontal edge, as in the top of a vertical plate or plank, through which water flows, - used in measuring the quantity of flowing water.
Mar 24, 2022

Dam

A female parent of an animal, especially a domesticated mammal such as a horse.
Mar 24, 2022

Weir

A low dam built across a stream to raise its level or divert its flow
Mar 24, 2022

Dam

(Archaic) A mother.
Mar 24, 2022

Weir

A fence or wattle built across a stream to catch or retain fish
Mar 24, 2022

Dam

To hold back or confine by means of a dam.
Mar 24, 2022

Dam

To close up; obstruct
He tried to dam his grief.
Mar 24, 2022

Dam

A structure placed across a flowing body of water to stop the flow or part of the flow, generally for purposes such as retaining or diverting some of the water or retarding the release of accumulated water to avoid abrupt flooding.
A dam is often an essential source of water to farmers of hilly country.
Mar 24, 2022

Dam

The water reservoir resulting from placing such a structure.
Boats may only be used at places set aside for boating on the dam.
Mar 24, 2022

Dam

(dentistry) A device to prevent a tooth from getting wet during dental work, consisting of a rubber sheet held with a band.
Mar 24, 2022

Dam

A reservoir.
Mar 24, 2022

Dam

A firebrick wall, or a stone, which forms the front of the hearth of a blast furnace.
Mar 24, 2022

Dam

Female parent, mother, generally regarding breeding of animals.
Mar 24, 2022

Dam

A kind of crowned piece in the game of draughts.
Mar 24, 2022

Dam

(India) An obsolete Indian copper coin, equal to a fortieth of a rupee.
Mar 24, 2022

Dam

A former coin of Nepal, 128 of which were worth one mohar.
Mar 24, 2022

Dam

(transitive) To block the flow of water.
Mar 24, 2022

Dam

Damn.
Mar 24, 2022

Dam

Damn.
Mar 24, 2022

Dam

A female parent; - used of beasts, especially of quadrupeds; sometimes applied in contempt to a human mother.
Our sire and dam, now confined to horses, are a relic of this age (13th century) . . . .Dame is used of a hen; we now make a great difference between dame and dam.
The dam runs lowing up and down,Looking the way her harmless young one went.
Mar 24, 2022

Dam

A king or crowned piece in the game of draughts.
Mar 24, 2022

Dam

A barrier to prevent the flow of a liquid; esp., a bank of earth, or wall of any kind, as of masonry or wood, built across a water course, to confine and keep back flowing water.
Mar 24, 2022

Dam

A firebrick wall, or a stone, which forms the front of the hearth of a blast furnace.
Mar 24, 2022

Dam

To obstruct or restrain the flow of, by a dam; to confine by constructing a dam, as a stream of water; - generally used with in or up.
I'll have the current in this place dammed up.
A weight of earth that dams in the water.
Mar 24, 2022

Dam

To shut up; to stop up; to close; to restrain.
The strait pass was dammedWith dead men hurt behind, and cowards.
Mar 24, 2022

Dam

A barrier constructed to contain the flow of water or to keep out the sea
Mar 24, 2022

Dam

A metric unit of length equal to ten meters
Mar 24, 2022

Dam

Female parent of an animal especially domestic livestock
Mar 24, 2022

Dam

Obstruct with, or as if with, a dam;
Dam the gorges of the Yangtse River
Mar 24, 2022

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