colour blindness

Từ điển WordNet v3.1 - WordNet Dictionary

noun

genetic inability to distinguish differences in hue
• Syn:
color blindness, color vision deficiency, colour vision deficiency
• Derivationally related forms:
colour-blind (for: color blindness), color-blind (for: color blindness)
• Hypernyms:
visual impairment, visual defect, vision defect, visual disorder, birth defect,
congenital anomaly, congenital defect, congenital disorder, congenital abnormality
• Hyponyms:
dichromacy, dichromatism, dichromatopsia, dichromia, dichromasy,
monochromacy, monochromatism, monochromatic vision, monochromia, monochromasy