porphyrin(redirected from Porphirine)
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Any of various organic compounds containing four pyrrole rings, occurring universally in protoplasm, and functioning as a metal-binding cofactor in hemoglobin, chlorophyll, and certain enzymes.
[Greek porphurā, purple dye, purple garment; see purple + -in.]
(Biochemistry) any of a group of pigments occurring widely in animal and plant tissues and having a heterocyclic structure formed from four pyrrole rings linked by four methylene groups
[C20: from Greek porphura purple, referring to its colour]
por•phy•rin(ˈpɔr fə rɪn)
a dark red, photosensitive pigment consisting of four pyrrole rings linked by single carbon atoms: a component of chlorophyll, heme, and vitamin B12.
[1905–10; < Greek porphýr(a) purple]
n. porfirina, compuesto que ocurre en el protoplasma y que es la base de los pigmentos respiratorios en los animales y las plantas.