melanosis Meaning, Definition & Usage

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

WordNet

Mel`a*no"sis
Etymology
NL., fr. Gr. a growing black, fr. , , black.
Definitions
  1. (Med.) The morbid deposition of black matter, often of a malignant character, causing pigmented tumors.

Webster 1913