isocyano group

14 LETTERS · STARTS WITH I

isocyano group is a valid 14-letter word worth 21 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1S1O1C3Y4A1N1O1G2R1O1U1P3

1 + 1 + 1 + 3 + 4 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 3 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does isocyano group mean?