achromia

English Thesaurus

1. an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells (noun.attribute)

hypernym	:	achromaticity, achromatism, colorlessness, colourlessness,
definition	:	the visual property of being without chromatic color (noun.attribute)

domain category	:	medical specialty, medicine,
definition	:	the branches of medical science that deal with nonsurgical techniques (noun.cognition)