The definition of hemoglobin is the red iron pigment that makes red blood cells red.(noun)
An example of hemoglobin is what brings oxygen from the lungs to the body's tissue.
See hemoglobin in Webster's New World College Dictionary
Origin: contr. (as if < hemo-) < earlier haematoglobulin: see hemato- & globulin
See hemoglobin in American Heritage Dictionary 4
noun Abbr. Hb or hg or hgb.
Origin: Ultimately short for hematinoglobulin
Origin: : hematin
Origin: + globulin.
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