carboxyl radical

16 LETTERS · STARTS WITH C

carboxyl radical is a valid 16-letter word worth 32 points in Scrabble and 36 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3A1R1B3O1X8Y4L1R1A1D2I1C3A1L1

3 + 1 + 1 + 3 + 1 + 8 + 4 + 1 + 0 + 1 + 1 + 2 + 1 + 3 + 1 + 1 =32 PTS

DOUBLE WORD → 64TRIPLE WORD → 96

MEANING

What does carboxyl radical mean?