The Collaborative International Dictionary
Zooerythrine
Zooerythrine \Zo`["o]*e*ryth"rine\, n. [Zo["o]- + Gr. ? red.] (Zo["o]l.) A peculiar organic red coloring matter found in the feathers of various birds.
Wiktionary
zooerythrine
n. (context zoology English) A peculiar organic red coloring matter found in the feathers of various birds.