/ Dictionary / Index H hemoglobin: Meaning and Definition of Find definitions for: he•mo•glo•bin Pronunciation: (hē'mu-glō"bin, hem'u-), [key] — n. Biochem. the oxygen-carrying pigment of red blood cells that gives them their red color and serves to convey oxygen to the tissues: occurs in reduced formin venous blood and in combination with oxygenin arterial blood. Symbol: Hb&hasp; Cf. heme. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hemoglobin (Thesaurus) hemogenia hemoglobinuria Related Content Daily Word Quiz: charlatan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language