|prōd.(ˌ)ō+ noun
Etymology: International Scientific Vocabulary prot- + prophyrin
: a purple porphyrin acid C 32 H 32 N 4 (COOH) 2 that is obtained from hemin or heme by removal of bound iron (as with formic acid and iron filings); tetramethyl-divinyl-porphin-di-propionic acid