The Collaborative International Dictionary
Melanistic
Melanistic \Mel`a*nis"tic\ (m[e^]l`[.a]*n[i^]s"t[i^]k), a. Affected with melanism; of the nature of melanism.
Wiktionary
melanistic
a. Of, pertaining to, or exhibiting melanism
Usage examples of "melanistic".
But this was her largest whip, the one that looked like a melanistic anaconda, something long enough and thick enough to crush your life out.
It is a melanistic Charaxes: a perfect, wholly melanistic Charaxes jasius.