inverse sine

NOUN
12 LETTERS · STARTS WITH I

inverse sine is a valid 12-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1V4E1R1S1E1S1I1N1E1
1 + 1 + 4 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does inverse sine mean?

NOUN · 1 SENSE
1

The inverse function of the sine; the angle that has a sine equal to a given number.