scotoma

NOUN /skɑ'toʊmə/
7 LETTERS · 3 SYLLABLES · STARTS WITH S

scotoma is a valid 7-letter word worth 11 points in Scrabble and 13 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1C3O1T1O1M3A1
1 + 3 + 1 + 1 + 1 + 3 + 1 =11 PTS
DOUBLE WORD → 22TRIPLE WORD → 33
MEANING

What does scotoma mean?