Search Result for "achromia": 
Wordnet 3.0

NOUN (1)

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



WordNet (r) 3.0 (2006):

achromia
    n 1: an absence of normal pigmentation especially in the skin
         (as in albinism) or in red blood cells