aperture ratio

14 LETTERS · STARTS WITH A

aperture ratio is a valid 14-letter word worth 15 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1P3E1R1T1U1R1E1R1A1T1I1O1

1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does aperture ratio mean?