less semitone

13 LETTERS · STARTS WITH L

less semitone is a valid 13-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1E1S1S1S1E1M3I1T1O1N1E1
1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =14 PTS
DOUBLE WORD → 28TRIPLE WORD → 42
MEANING

What does less semitone mean?

1