porphyrin Hear it!

porphyrin definition

por·phy·rin (pôr′fə rin)

noun

any of a group of pyrrole derivatives, found in cytoplasm, that combine with iron and magnesium to form heme and chlorophyll, respectively

Etymology: < Gr porphyra, purple + -in

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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