protohemin — noun hemin … Wiktionary
protohemin — pro·to·he·min or chiefly Brit pro·to·hae·min .hē mən n HEMIN * * * pro·to·he·min (pro″to heґmin) protoheme in which the iron atom is oxidized to the +3 oxidation state … Medical dictionary
protohemin — pro·to·hemin … English syllables
hemin — noun /ˈhi.mɪn/ a reddish brown substance produced in a laboratory test for the presence of blood by reaction with glacial acetic acid and sodium chloride Syn: hematin chloride, protohemin … Wiktionary
hemin — 1. Chloride of heme in which Fe2+ has become Fe3+. H. crystals are called Teichmann crystals, under crystal. 2. Any coordination complex of chloro(porphyrinato)iron(III). SYN: chlorohemin, factor X for Haemophilus, ferriheme chloride,… … Medical dictionary
hemin — noun a reddish brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood • Syn: ↑protohemin • Hypernyms: ↑chloride * * * /hee min/, n. Biochem. the typical, microscopic reddish brown crystals, C34H32N4O4FeCl,… … Useful english dictionary