detention basin

NOUN
15 LETTERS · STARTS WITH D

detention basin is a valid 15-letter word worth 17 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2E1T1E1N1T1I1O1N1B3A1S1I1N1
2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does detention basin mean?

NOUN · 1 SENSE
1

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