Dam

Part of speech: noun (n.)

1. 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. T. L. K. Oliphant. The dam runs lowing up end down, Looking the way her harmless young one went. Shak.

2. A kind or crowned piece in the game of draughts.

Part of speech: noun (n.)

1. 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.

2. A firebrick wall, or a stone, which forms the front of the hearth of a blast furnace. Dam plate (Blast Furnace), an iron plate in front of the dam, to strengthen it.

Part of speech: verb (v.)

1. 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. Shak. A weight of earth that dams in the water. Mortimer.

2. To shut up; to stop up; to close; to restrain. The strait pass was dammed With dead men hurt behind, and cowards. Shak. To dam out, to keep out by means of a dam.