colour blindness(n = noun.state) color blindness, color vision deficiency, colour vision deficiency - genetic inability to distinguish differences in hue;
is a kind of birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder, vision defect, visual defect, visual disorder, visual impairment
has particulars: dichromacy, dichromasy, dichromatism, dichromatopsia, dichromia, monochromacy, monochromasy, monochromatic vision, monochromatism, monochromia

achromatic colour, blindness, chromatic colour, color blindness, colour, colour bar, colour constancy, colour in, colour line, colour of law, colour scheme, colour supplement, colour television, colour television system, colour television tube, colour tube, colour tv, colour tv tube, colour vision deficiency, colour wash, day blindness, dithered colour, figural blindness, food colour, moon blindness, night blindness, nonsolid colour, oil colour, people of colour, person of colour, poster colour, red-green color blindness, red-green colour blindness, river blindness, skin colour, spectral colour, word blindness, yellow-blue color blindness