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单词 scotoma
释义

WordReference Random House Unabridged Dictionary of American English © 2024
sco•to•ma  (skō tōmə),USA pronunciation n., pl. -mas, -ma•ta (-mə tə).USA pronunciation [Pathol.]
  1. Ophthalmologyloss of vision in a part of the visual field; blind spot.
  • Greek skótōma dizziness. See scoto-, -oma
  • Late Latin
  • 1535–45
sco•tom•a•tous  (skō tomə təs),USA pronunciation adj. 
Collins Concise English Dictionary © HarperCollins Publishers::
scotoma /skɒˈtəʊmə/ n ( pl -mas, -mata / -mətə/)
  1. 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. a mental blind spot; inability to understand or perceive certain matters
Etymology: 16th Century: via Medieval Latin from Greek skotōma giddiness, from skotoun to make dark, from skotos darkness
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