negative polarity

17 LETTERS · STARTS WITH N

negative polarity is a valid 17-letter word worth 25 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1E1G2A1T1I1V4E1P3O1L1A1R1I1T1Y4

1 + 1 + 2 + 1 + 1 + 1 + 4 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 4 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does negative polarity mean?