weir

/wɪər/

/wɪə/

Other forms: weirs

Definitions of weir

1. noun

   a low dam built across a stream to raise its level or divert its flow
   type of:

   dam, dike, dyke

   a barrier constructed to contain the flow of water or to keep out the sea
2. noun

   a fence or wattle built across a stream to catch or retain fish
   type of:

   fence, fencing

   a barrier that serves to enclose an area