English Explanatory Dictionary

Daltonism

English dictionary entry

Meanings

noun
  1. An inability or defective ability to perceive or distinguish certain colors, especially red-green color blindness.
  2. Achromatopsia.
noun
  1. Alternative letter-case form of Daltonism.

Pronunciation

/ˈdɔːltənɪzəm/ LL-Q1860 (eng)-Neøn-daltonism.wav

Word forms

Daltonism

Etymology

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

Synonyms

color blindness dichromatism

Related words

Daltonian Daltonic
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