noun
also hae·min ˈhēmə̇n
( -s )
Etymology: International Scientific Vocabulary hem- + -in
1.
a. also hemin chloride : a red-brown to blue-black crystalline salt C 34 H 32 N 4 O 4 FeCl derived from oxidized heme but usually obtained in a characteristic crystalline form from hemoglobin by treatment with hot glacial acetic acid containing sodium chloride; ferriprotoporphyrin chloride — called also protohemin ; compare blood crystal , hematin 2a, teichmann's crystal
b. : any of a series of salts of which hemin chloride is a member
2. : any of several iron-porphyrin derivatives similar to hemin chloride — compare heme 2