Category:Weir

Weir, wear, n. Etym: [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. sq. root142. Cf. Garret.]

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.