| English noun: colour blindness | 
| 1. | colour blindness (state) genetic inability to distinguish differences in hue | 
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 | Synonyms | color blindness, color vision deficiency, colour vision deficiency | 
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 | Broader (hypernym) | birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disorder, vision defect, visual defect, visual disorder, visual impairment | 
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 | Narrower (hyponym) | dichromacy, dichromasy, dichromatism, dichromatopsia, dichromia, monochromacy, monochromasy, monochromatic vision, monochromatism, monochromia | 
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