complementariness

17 LETTERS · 6 SYLLABLES · STARTS WITH C

complementariness is a valid 17-letter word worth 25 points in Scrabble and 32 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3O1M3P3L1E1M3E1N1T1A1R1I1N1E1S1S1

3 + 1 + 3 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does complementariness mean?