melanism
me·la·nism
noun
1.
a condition characterized by abnormal deposits of melanin (especially in the skin)
Origin
From French mélanisme; by surface analysis, melan(o)- + -ism.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.