monochromia

English Thesaurus

1. complete color blindness; colors can be differentiated only on the basis of brightness (noun.state)

hypernym	:	color blindness, color vision deficiency, colour blindness, colour vision deficiency,
definition	:	genetic inability to distinguish differences in hue (noun.state)

derivation	:	monochromatic,
definition	:	of or relating to monochromatism (adj.pert)

derivation	:	monochromatic,
definition	:	of or relating to monochromatism (adj.pert)