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scotoma

[skoh-toh-muh] /skoʊˈtoʊ mə/
noun, plural scotomas, scotomata
[skoh-toh-muh-tuh] /skoʊˈtoʊ mə tə/ (Show IPA).
Pathology
1.
loss of vision in a part of the visual field; blind spot.
Origin
1535-1545
1535-45; < Late Latin < Greek skótōma dizziness. See scoto-, -oma
Related forms
scotomatous
[skoh-tom-uh-tuh s] /skoʊˈtɒm ə təs/ (Show IPA),
adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for scotomas'

scotoma

/skɒˈtəʊmə/
noun (pl) -mas, -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
Derived Forms
scotomatous (skɒˈtɒmətəs) adjective
Word Origin
C16: via Medieval Latin from Greek skotōma giddiness, from skotoun to make dark, from skotos darkness
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for scotomas'

scotoma

n.

(plural scotomata), 1540s, from Late Latin scotoma, from Greek skotoma "dizziness," from skotoun "to darken," from skotos "darkness" (see shade).

Online Etymology Dictionary, © 2010 Douglas Harper
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scotomas' in Medicine

scotoma sco·to·ma (skə-tō'mə)
n. pl. sco·to·mas or sco·to·ma·ta (-mə-tə)

  1. An area of diminished vision within the visual field.

  2. See blind spot.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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