photoelectric device

20 LETTERS · STARTS WITH P

photoelectric device is a valid 20-letter word worth 34 points in Scrabble and 39 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3H4O1T1O1E1L1E1C3T1R1I1C3D2E1V4I1C3E1

3 + 4 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 3 + 0 + 2 + 1 + 4 + 1 + 3 + 1 =34 PTS

DOUBLE WORD → 68TRIPLE WORD → 102

MEANING

What does photoelectric device mean?