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porphin

[ pôr′fĭn ]

n.

The unsubstituted heterocyclic ring consisting of four pyrrole rings; it is the basic unit of the porphyrins.

Nearby words

porosis, porosity, porotomy, porous, porously, porphin, porphobilin, porphobilinogen, porphyrean, porphyria, porphyria cutanea tarda

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.