nitramino group

15 LETTERS · STARTS WITH N

nitramino group is a valid 15-letter word worth 19 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1I1T1R1A1M3I1N1O1G2R1O1U1P3

1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 3 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does nitramino group mean?