protanopia

noun
prot·​an·​opia | \ ˌprōt-ə-ˈnō-pē-ə How to pronounce protanopia (audio) \

Medical Definition of protanopia

: a dichromatism in which the spectrum is seen in tones of yellow and blue with confusion of red and green and reduced sensitivity to monochromatic lights from the red end of the spectrum

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