light valve

11 LETTERS · STARTS WITH L

light valve is a valid 11-letter word worth 20 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1G2H4T1V4A1L1V4E1

1 + 1 + 2 + 4 + 1 + 0 + 4 + 1 + 1 + 4 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does light valve mean?