HAEMOGLOBIN

hemoglobin, haemoglobin, Hb

(noun) 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; “fish have simpler hemoglobin than mammals”

Source: WordNet® 3.1

Etymology

Noun

haemoglobin (countable and uncountable, plural haemoglobins)

(British spelling, protein) Alternative spelling of hemoglobin

Source: Wiktionary

Hæm`o*glo"bin, n.

Definition: Same as Hemoglobin.

Source: Webster’s Unabridged Dictionary 1913 Edition