Learn how to say Tritanopia correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word tritanopia:
a rare form of colour blindness resulting from insensitivity to blue light, causing confusion of greens and blues. Compare with protanopia.
early 20th century: from trito- ‘third’ (referring to blue as the third colour in the spectrum) + an-1 ‘without’ + -opia