hemoglobin
1. [ noun ] (chemistry,biochemistry) a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
Synonyms: hb haemoglobin
Examples:

"fish have simpler hemoglobin than mammals"

Related terms: conjugated_protein haemoprotein oxyhaemoglobin myoglobin red_blood_cell globin heme
Similar spelling:   haemoglobin