phycoerythrin
noun
phy·co·er·y·thrin ˌfī-kō-ˈer-i-thrən 
: any of the red protein pigments in the cells of red algae
Word History
Etymology
International Scientific Vocabulary phyco- + erythr- + -in entry 1
First Known Use
1866, in the meaning defined above
Medical Definition
phycoerythrin
noun
phy·co·er·y·thrin -ˈer-i-thrən
: any of the red protein pigments in the cells of red algae