Daltonism

n.

1.

Inability to perceive or distinguish certain colors, esp. red; color blindness. It has various forms and degrees. So called from the chemist Dalton, who had this infirmity.

Noun

1.

Daltonism - dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red Synonyms: deuteranopia, green-blindness

deuteranopia, green-blindness, red-green color blindness, red-green colour blindness, red-green dichromacy