phycobilin

noun
phy·​co·​bi·​lin | \ ˌfī-kō-ˈbī-lən How to pronounce phycobilin (audio) , -ˈbil-ən How to pronounce phycobilin (audio) \

Medical Definition of phycobilin

: any of a class of pigments that occur in the cells of algae, are active in photosynthesis, and are proteins combined with pyrrole derivatives related to the bile pigments

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