echelle grating

15 LETTERS · STARTS WITH E

echelle grating is a valid 15-letter word worth 21 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

E1C3H4E1L1L1E1G2R1A1T1I1N1G2

1 + 3 + 4 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 1 + 1 + 2 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does echelle grating mean?