noun, plural sco·to·mas, sco·to·ma·ta [skoh-toh-muh-tuh] /skoʊˈtoʊ mə tə/. Pathology.

  1. loss of vision in a part of the visual field; blind spot.

noun plural -mas or -mata (-mətə)

  1. pathol 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. psychol a mental blind spot; inability to understand or perceive certain matters

n.(plural scotomata), 1540s, from Late Latin scotoma, from Greek skotoma “dizziness,” from skotoun “to darken,” from skotos “darkness” (see shade). n. pl. sco•to•mas

  1. An area of diminished vision within the visual field.
  2. blind spot

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