weir
15
8.2
- noun
- /wɪr/
:
presa
- The flow rate over a weir is a function of the head on the weir.
- diversion weir
- fish weirs
- weir, a flexible dam
Examples
-
As the system surcharges, the water level increases and begins to spill over the weir wall.
Academic text (2011) -
Most fishermen used locally produced weirs (mackonga), placed at strategic points near the shoreline.
Academic text (2005) -
In order to create an overflow, a weir wall was installed.
Academic text (2011) -
When freshwater in the channel is higher than the incoming tide, it simply flows over the weir.
Academic text (2016) -
And they caught fish in weirs 11-13 m long and 1.8-2.3 m deep.
Academic text (1990) -
Flow-measuring weirs are barriers that change the height of flowing water and allow for volumetric flow-rate estimates.
Academic text (2018) -
The fisherman stood by the weir hoping to catch some trout that were swimming upstream.
-
Water flows gently over the weir, creating a small waterfall that attracts local wildlife.
-
The engineers designed a new weir to help control flooding in the nearby town.
Synonyms
205
1.8
A barrier across a river that holds back water
How Big
205
1.8
15
8.2
Surface Forms
Etymology
Weir comes from an old word wer meaning 'fence' or 'barrier' put into a river to catch fish. That's why a weir is a low wall across a stream that controls the water and can trap fish.