Of, pertaining to, or exhibiting melanism(adjective)
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Use "melanistic" in a sentence
"MO, sheriff's deputy has been identified as a melanistic leopard by a zoo curator."
"One day in the forest he saw a black jaguar—that is, a melanistic aberration from the spotted pattern of ordinary jaguars—and gaped at it without raising his gun."
"I also killed and have the mounted head of a melanistic Impala in my collection."