detention basin

1. 1.

   a storage site (such as a small reservoir) that delays the flow of water downstream

   Broaderriver basin

Questions about detention basin

What does detention basin mean?

detention basin means "a storage site (such as a small reservoir) that delays the flow of water downstream".

Is detention basin a common word?

detention 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.