Noun: Hb
- A hemoprotein composed of globin and heme that gives red blood cells their characteristic colour; function primarily to transport oxygen from the lungs to the body tissues
"fish have simpler Hb than mammals";
- hemoglobin [N. Amer], haemoglobin [Brit, Cdn]
Type of: haemoprotein [Brit, Cdn], hemoprotein [N. Amer]
Part of: erythrocyte, RBC, red blood cell
Encyclopedia: Hb