A dam built across a stream to interrupt its flow and raise the level of the water so that it will turn a mill-wheel. Also: the body of water held…

northern. ‘A mill-dam in a stream’ (Eng. Dial. Dict.). Now written warren.

a bank or dam which confines a pond; (also) the pond contained within such a bank or dam.

Hydraulic Engineering. A watertight enclosure used for obtaining a dry foundation for bridges, piers, etc.; usually constructed of two rows of…

A coffer-dam.

a dam for collecting water.

a dam made with planks coated with preservative attached to a timber frame.

a dam formed of cribs.

a dam having gates which are opened and closed by hydraulic pressure obtained by water driven through pipes by means of a turbine.

transferred. A temporary dam constructed across a river.

a dam or weir consisting of narrow spars placed vertically side by side in a movable frame.

(see quot. 1953).

a dam that resists the pressure of the water by its weight.