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achromatopsia

[ey-kroh-muh-top-see-uh] /eɪˌkroʊ məˈtɒp si ə/
noun, Pathology
1.
color blindness (def 2).
Also, achromatopia
[ey-kroh-muh-toh-pee-uh] /eɪˌkroʊ məˈtoʊ pi ə/ (Show IPA),
achromatopsy
[ey-kroh-muh-top-see] /eɪˈkroʊ məˌtɒp si/ (Show IPA)
.
Origin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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achromatopsy in Medicine

achromatopsia a·chro·ma·top·si·a (ə-krō'mə-tŏp'sē-ə) or a·chro·ma·top·sy (ə-krō'mə-tŏp'sē)
n.
A severe congenital deficiency in color perception, often associated with nystagmus and reduced visual acuity. Also called achromatic vision, monochromatism.

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