achromia achromia /ˈeɪkroʊmiə/

noun

1. (medicine) an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells  ( achromia )
   (medicine) an absence of normal pigmentation especially in the skin (as in albinism) or in red blood cells
    Patients with achromia lack the usual pigmentation in their skin.
   Patients with achromia lack the usual pigmentation in their skin.