abductor muscle

NOUN
15 LETTERS · STARTS WITH A

abductor muscle is a valid 15-letter word worth 23 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1B3D2U1C3T1O1R1M3U1S1C3L1E1
1 + 3 + 2 + 1 + 3 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 3 + 1 + 1 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does abductor muscle mean?