positive ray

12 LETTERS · STARTS WITH P

positive ray is a valid 12-letter word worth 19 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3O1S1I1T1I1V4E1R1A1Y4

3 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 1 + 1 + 4 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does positive ray mean?