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achromatopia

 - 3 dictionary results

a⋅chro⋅ma⋅top⋅si⋅a

  [ey-kroh-muh-top-see-uh]
Use achromatopia in a Sentence
–noun Pathology.
color blindness (def. 2).
Also, a⋅chro⋅ma⋅to⋅pi⋅a  [ey-kroh-muh-toh-pee-uh] , a⋅chro⋅ma⋅top⋅sy  [ey-kroh-muh-top-see] .

Origin:
a- 6 + chromat- + -opsia
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: achro·ma·top·sia
Pronunciation: "A-"krO-m&-'täp-sE-&
Function: noun
: a visual defect marked by total colorblindness in which the colors of the spectrum are seen as tones of white-gray-black
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

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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