protanopia

[ proht-n-oh-pee-uh ]

nounOphthalmology.

a defect of vision in which the retina fails to respond to red or green.

Origin of protanopia

From New Latin, dating back to 1900–05; see origin at prot-, an-¹, -opia

Other words from protanopia

pro·ta·nop·ic [proht-n-op-ik], /ˌproʊt nˈɒp ɪk/, adjective

Words Nearby protanopia

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

British Dictionary definitions for protanopia

protanopia

/ (ˌprəʊtəˈnəʊpɪə) /

noun

a form of colour blindness characterized by a tendency to confuse reds and greens and by a loss of sensitivity to red light

Origin of protanopia

C20: New Latin, from proto- + an- + -opia

Derived forms of protanopia

protanopic (ˌprəʊtəˈnɒpɪk), adjective

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