tritanopia

trit an o pi a |ˌtrītnˈōpēə ˌtraɪtnˈoʊpiə | ▶noun a rare form of color-blindness resulting from insensitivity to blue light, causing confusion of greens and blues. Compare with protanopia. ORIGIN early 20th cent.: from trito- ‘third ’ (referring to blue as the third color in the spectrum ) + an- 1 ‘without ’ + -opia .

tritanopia

tritanopia |ˌtrɪtəˈnəʊpɪə | ▶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 cent.: from trito- ‘third ’ (referring to blue as the third colour in the spectrum ) + an- 1 ‘without ’ + -opia .