tritanopia

American

[trahyt-n-oh-pee-uh] / ˌtraɪt nˈoʊ pi ə /

noun

Ophthalmology.

a defect of vision in which the retina fails to respond to blue and yellow.

tritanopia British

/ ˌtrɪt-, ˌtrɪt-, ˌtraɪtəˈnəʊpɪə, ˌtraɪtəˈnɒpɪk /

noun

a form of colour blindness in which there is a tendency to confuse blues and greens and in which sensitivity to blue is reduced

"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

Other Word Forms

tritanopic adjective

Etymology

Origin of tritanopia

< New Latin, equivalent to trit- (< Greek trítos third ) + an- an- ¹ + -opia -opia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tritanopia is rare - blue is confused with green and yellow with violet.

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023