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Daltonism

//ˈdɔːltənɪzəm// noun

Noun

1
An inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness. uncountable
"A person with Daltonism may be said to lack a discriminatory power that others have: his perceptions of red and green are, as such, not to be relied on."
2
Alternative letter-case form of Daltonism. alt-of, uncountable
3
dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red wordnet
4
Achromatopsia. uncountable

From Dalton + -ism. Named after John Dalton (1766–1844), who suffered from the condition and conducted early research on it.

Unscramble this word: daltonism