n.
Pronunciation: sk ə - ' t ō -m ə
Function: noun
Inflected Form: plural -mas or -ma · ta \ -m ə -t ə \
Etymology: New Latin, from Medieval Latin, dimness of vision, from Greek skot ō mat-, skot ō ma, from skotoun to darken, from skotos
Date: 1875
: a spot in the visual field in which vision is absent or deficient