a blind spot; a permanent or temporary area of depressed or absent vision caused by lesions of the visual system, viewing the sun directly (eclipse scotoma), squinting, etc
2. psychology
a mental blind spot; inability to understand or perceive certain matters
Derived forms
scotomatous (skɒˈtɒmətəs)
adjective
Word origin
C16: via Medieval Latin from Greek skotōma giddiness, from skotoun to make dark, from skotos darkness