tritanopia

[trahyt-n-oh-pee-uh]

noun Ophthalmology.

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 formstrit·an·op·ic

[trahyt-n-op-ik] /ˌtraɪt nˌɒp ɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for tritanopia

tritanopia

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

Derived Formstritanopic (ˌtraɪtəˈnɒpɪk, ˌtrɪt-), adjective

Word Origin for tritanopia

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

tritanopia in Medicine

tritanopia

[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.