Main Entry: sco·to·ma

Pronunciation: \skə-ˈtō-mə\

Function: noun

Inflected Form(s): plural sco·to·mas or sco·to·ma·ta \-mə-tə\

Etymology: New Latin, from Medieval Latin, dimness of vision, from Greek skotōmat-, skotōma, from skotoun to darken, from skotos

Date: 1875

: a spot in the visual field in which vision is absent or deficient