The Collaborative International Dictionary
Phycoxanthin
Phycoxanthin \Phy`co*xan"thin\, Phycoxanthine \Phy`co*xan"thine\, n. [Gr. ? seaweed + ? yellow.] A yellowish coloring matter found in certain alg[ae].
Wiktionary
phycoxanthin
n. (context dated English) A yellowish colouring matter found in certain algae.