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tritanopia

[trahyt-n-oh-pee-uh] /ˌtraɪt nˈoʊ pi ə/
noun, Ophthalmology.
1.
a defect of vision in which the retina fails to respond to blue and yellow.
Origin of tritanopia
< New Latin, equivalent to trit- (< Greek trítos third) + an- an-1 + -opia -opia
Related forms
tritanopic
[trahyt-n-op-ik] /ˌtraɪt nˌɒp ɪk/ (Show IPA), adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for tritanopia

tritanopia

/ˌtraɪtəˈnəʊpɪə; ˌtrɪt-/
noun
1.
a form of colour blindness in which there is a tendency to confuse blues and greens and in which sensitivity to blue is reduced
Derived Forms
tritanopic (ˌtraɪtəˈnɒpɪk; ˌtrɪt-) adjective
Word Origin
C19/20: from New Latin, from Greek tritos third + New Latin anopia blindness; signifying that only two thirds of the spectrum can be distinguished
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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tritanopia in Medicine

tritanopia tri·tan·o·pi·a (trī'tə-nō'pē-ə)
n.
A deficiency in color preception characterized by an inability to discern blue and yellow due to an absence of blue-sensitive pigment in the retina.

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