Tritanopia
noun ·Rare ·Advanced level
Definitions
- 1 A form of color blindness in which the retina is deficient in or lacks cone cells containing opsins that respond to the color blue, resulting in an inability to distinguish blue from green. countable, uncountable
"Tritanopia is an extremely rare hereditary condition corresponding to a loss in function of the short wavelength sensitive cones. To produce transient tritanopia, the eye of the normal observer is first strongly adapted to a yellow light that maximally adapts the pigment of the long and middle wavelength cones, but has relatively less influence on the short wavelength sensitive cones."
- 2 rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow wordnet
Example
More examples"Tritanopia is an extremely rare hereditary condition corresponding to a loss in function of the short wavelength sensitive cones. To produce transient tritanopia, the eye of the normal observer is first strongly adapted to a yellow light that maximally adapts the pigment of the long and middle wavelength cones, but has relatively less influence on the short wavelength sensitive cones."
Etymology
From trito- (“third (color)”) + an- (“without”) + -opia (“vision”).
Related phrases
More for "tritanopia"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.