weir Meaning, Definition & Usage

  1. noun a low dam built across a stream to raise its level or divert its flow
  2. noun a fence or wattle built across a stream to catch or retain fish

WordNet

Weir, Wear noun (Also<
  • Weir
  • Wear
)
Etymology
OE. wer, AS. wer; akin to G. wehr, AS. werian to defend, protect, hinder, G. wehren, Goth. warjan; and perhaps to E. wary; or cf. Skr. vr to check, hinder. Cf. Garret.
Definitions
  1. 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.
  2. A fence of stakes, brushwood, or the like, set in a stream, tideway, or inlet of the sea, for taking fish.
  3. 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.

Webster 1913