An abnormal darkening of the skin caused by deposition of excess melanin or of metallic substances.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for melanoderma
Historical Examples of melanoderma
The color is yellowish, or brownish, and may even be blackish (melasma, melanoderma).Essentials of Diseases of the Skin
Henry Weightman Stelwagon