grid modulation

15 LETTERS · STARTS WITH G

grid modulation is a valid 15-letter word worth 19 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

G2R1I1D2M3O1D2U1L1A1T1I1O1N1

2 + 1 + 1 + 2 + 0 + 3 + 1 + 2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does grid modulation mean?