The Collaborative International Dictionary
Zoomelanin
Zoomelanin \Zo`["o]*mel"a*nin\, n. [Zo["o]- + melanin.] (Physiol. Chem.) A pigment giving the black color to the feathers of many birds.
Wiktionary
zoomelanin
n. (context physiological chemistry English) A pigment giving the black color to the feathers of many birds.