disk photometer

15 LETTERS · STARTS WITH D

disk photometer is a valid 15-letter word worth 26 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2I1S1K5P3H4O1T1O1M3E1T1E1R1

2 + 1 + 1 + 5 + 0 + 3 + 4 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 =26 PTS

DOUBLE WORD → 52TRIPLE WORD → 78

MEANING

What does disk photometer mean?