What is another word for melanism?
Pronunciation: [mˈɛlɐnˌɪzəm] (IPA) 
Melanism, the opposite of albinism, refers to the increased development of dark-colored pigmentation in animal skin or fur. There are several synonyms for melanism, including hypermelanosis, melanotic, and excessive pigmentation. Other related terms include dark morph, which describes a variety of organisms that exhibit black or dark coloring, and melanistic, which refers to the state of being melanized. Melanism can be found in a variety of organisms, from jaguars and panthers to insects and birds. It is an important adaptation that can provide animals with camouflaging advantages in their respective environments, as well as help to regulate body temperature.
