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tritanopia


Definition of tritanopia

noun

[mass noun]
  • a rare form of colour blindness resulting from insensitivity to blue light, causing confusion of greens and blues. Compare with protanopia.

Origin:

early 20th century: from trito- 'third' (referring to blue as the third colour in the spectrum) + an-1 'without' + -opia

tritanopia in other Oxford dictionaries

Definition of tritanopia in the US English dictionary