/ English Dictionary

COLOUR VISION DEFICIENCY

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

Genetic inability to distinguish differences in hue

Synonyms:

color blindness; color vision deficiency; colour blindness; colour vision deficiency

Classified under:

Nouns denoting stable states of affairs

Hypernyms ("colour vision deficiency" is a kind of...):

birth defect; congenital abnormality; congenital anomaly; congenital defect; congenital disorder (a defect that is present at birth)

vision defect; visual defect; visual disorder; visual impairment (impairment of the sense of sight)

Hyponyms (each of the following is a kind of "colour vision deficiency"):

dichromacy; dichromasy; dichromatism; dichromatopsia; dichromia (a deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision))

monochromacy; monochromasy; monochromatic vision; monochromatism; monochromia (complete color blindness; colors can be differentiated only on the basis of brightness)

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