The Collaborative International Dictionary
Polyperythrin
Polyperythrin \Pol`y*pe*ryth"rin\, n. [Polyp + Gr. ? red.] (Physiol. Chem.) A coloring matter found in many simple Anthozoa and some hydroids.
Wiktionary
polyperythrin
n. (context biochemistry English) A pigment found in many simple Anthozoa and some hydroids.