photoelectric photometer

24 LETTERS · STARTS WITH P

photoelectric photometer is a valid 24-letter word worth 39 points in Scrabble and 43 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3H4O1T1O1E1L1E1C3T1R1I1C3P3H4O1T1O1M3E1T1E1R1

3 + 4 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 3 + 0 + 3 + 4 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =39 PTS

DOUBLE WORD → 78TRIPLE WORD → 117

MEANING

What does photoelectric photometer mean?