addition reaction

NOUN
17 LETTERS · STARTS WITH A

addition reaction is a valid 17-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1D2D2I1T1I1O1N1R1E1A1C3T1I1O1N1
1 + 2 + 2 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does addition reaction mean?

NOUN · 1 SENSE
1

A chemical reaction in which one molecule is added to another.