porphyrin Porphyrianist • porphyrine · · · Info · Definitions · Characters · · porphyrin · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) any of various pigments distributed widely in living tissues. · · Noun Definition 1 Characters · · h latin small letter h U+0068 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 y latin small letter y U+0079