melanism Meaning, Definition & Usage

  1. noun a condition characterized by abnormal deposits of melanin (especially in the skin)
    melanosis.

WordNet

Mel"a*nism noun
Etymology
Gr. , , black.
Definitions
  1. An indue development of dark-colored pigment in the skin or its appendages; -- the opposite of albinism.
  2. (Med.) A disease; black jaundice. See Melna.

Webster 1913