color blindness(redirected from Colour vision deficiencies)
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|Noun||1.||color blindness - genetic inability to distinguish differences in hue|
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
birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder - a defect that is present at birth