| NOUN | state | colour blindness, color blindness, color vision deficiency, colour vision deficiency | genetic inability to distinguish differences in hue |
|---|
| Meaning | genetic inability to distinguish differences in hue. | |
|---|---|---|
| Synonyms | color blindness, color vision deficiency, colour 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) |
| 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 |
| 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 | |
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