Adjacent Words

Daltonism definitions

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WordNet (r) 3.0 (2005)

n
1: dichromacy characterized by a lowered sensitivity to green light resulting in an inability to distinguish green and purplish-red [syn: deuteranopia, Daltonism, green- blindness]

Oxford Reference Dictionary

n. colour-blindness, esp. a congenital inability to distinguish between red and green. Etymology: F daltonisme f. J. Dalton, Engl. chemist d. 1844, who suffered from it

Webster's 1913 Dictionary

Daltonism Dal"ton*ism, n. 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. --Nichol.

Soule's Dictionary of English Synonyms

n. Color-blindness.