onium compound

14 LETTERS · STARTS WITH O

onium compound is a valid 14-letter word worth 22 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

O1N1I1U1M3C3O1M3P3O1U1N1D2

1 + 1 + 1 + 1 + 3 + 0 + 3 + 1 + 3 + 3 + 1 + 1 + 1 + 2 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does onium compound mean?