labium minus

12 LETTERS · STARTS WITH L

labium minus is a valid 12-letter word worth 17 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1A1B3I1U1M3M3I1N1U1S1

1 + 1 + 3 + 1 + 1 + 3 + 0 + 3 + 1 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does labium minus mean?