Weir n. : Alt. of Wear

Example:


Taxonomy
weir, crest, V-notch weir, Minimum Energy, MEL, broad-crested weir, Energy Loss, rectangular weirs, rectangular weir, culvert, flow rate, water level, chute, dam, free encyclopedia, Broad crested weir, Crump weir, sharp-crested weir.

Defination from the web:
weir (pronounced /ˈwɪər/), also known as a lowhead dam, is a small overflow-type dam commonly used to raise the level of a river or stream. ... The weir at Coburg lake in Victoria (Australia) after heavy rainfall. ...