serratus posterior

NOUN
18 LETTERS · STARTS WITH S

serratus posterior is a valid 18-letter word worth 19 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1E1R1R1A1T1U1S1P3O1S1T1E1R1I1O1R1
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =19 PTS
DOUBLE WORD → 38TRIPLE WORD → 57
MEANING

What does serratus posterior mean?

NOUN · 1 SENSE