colour_vision_deficiency (HyperDic hyper-dictionary)

English > 1 sense of the expression *colour vision deficiency*:
NOUN	state	colour vision deficiency, color blindness, colour blindness, color vision deficiency	genetic inability to distinguish differences in hue

English > *colour vision deficiency*: 1 sense > noun 1, state
Meaning	genetic inability to distinguish differences in hue.
Synonyms	color blindness, colour blindness, color vision deficiency
Narrower	dichromacy, dichromatism, dichromatopsia, dichromia, dichromasy	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)
Narrower	monochromacy, monochromatism, monochromatic vision, monochromia, monochromasy	complete color blindness
Broader	birth defect, congenital anomaly, congenital defect, congenital disorder, congenital abnormality	A defect that is present at birth / birth
Broader	visual impairment, visual defect, vision defect, visual disorder	impairment of the sense of sight
Spanish	acromatopsia, daltonismo, deficiencia de la visión del color
Catalan	acromatòpsia, daltonisme

HyperDic: colour_vision_deficiency