Dam n. : A female parent; -- used of beasts, especially of quadrupeds; sometimes applied in contempt to a human mother.

Dam n. : A kind or crowned piece in the game of draughts.

Dam n. : 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.

Dam n. : A firebrick wall, or a stone, which forms the front of the hearth of a blast furnace.

Dam v. t. : 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.

Dam v. t. : To shut up; to stop up; to close; to restrain.

Example:
Would building a Dam across the Strait of Gilbraltar, prevent rising sea levels in the Mediterranean?

Taxonomy
dam, reservoir, spillway, arch dam, earth, timber, rock, embankment, earth dam, gravity dam, water flow, gravity dams, cofferdam, timber crib, rivers, foundation, power, power generation.

Defination from the web:
Dam (disambiguation). "Dams" redirects here. For the village and municipal seat in Albania, see Damës. ... Many large dams also survive at Mérida in Spain. The oldest surviving and standing dam in the world is believed to be the Quatinah barrage in modern-day Syria. ...