retention basin

1. 1.

   a storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstream

   Broaderriver basin

Questions about retention basin

What does retention basin mean?

retention basin means "a storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstream".

Is retention basin a common word?

retention basin is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.