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Definition of Porphyrin
1. Noun. Any of various pigments distributed widely in living tissues.
Generic synonyms: Pigment
Definition of Porphyrin
1. Noun. (organic chemistry) Any of a class of heterocyclic compounds containing four pyrrole rings arranged in a square; they are important in biochemistry in a form with a metal atom in the central cavity (hemoglobin with iron, chlorophyll with magnesium, etc.). ¹
¹ Source: wiktionary.com
Definition of Porphyrin
1. [n -S]