Definition of Haemoglobin

1. 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"

Exact synonyms: Hb, Hemoglobin
Substance meronyms: Erythrocyte, Rbc, Red Blood Cell
Generic synonyms: Haemoprotein, Hemoprotein
Specialized synonyms: Oxyhaemoglobin, Oxyhemoglobin
Terms within: Haem, Haemitin, Hematin, Heme, Protoheme, Globin, Haematohiston, Hematohiston

Definition of Haemoglobin

1. Noun. (protein) (alternative spelling of hemoglobin) ¹

¹ Source:

Medical Definition of Haemoglobin

1. Four subunit globular oxygen carrying protein of the erythrocytes of vertebrates and some invertebrates. It is a conjugated protein containing four haem groups and globin. There are two alpha and two beta chains (very similar to myoglobin) in adult humans, the haem moiety (an iron containing substituted porphyrin) is firmly held in a nonpolar crevice in each peptide chain. There are four globin polypeptide chains, designated alpha, beta, gamma, delta in the adult. Each is composed of several hundred amino acids. (08 Mar 2000)

Lexicographical Neighbors of Haemoglobin

haemoendothelial placenta
haemoglobin (current term)
haemoglobin A
haemoglobin A1C
haemoglobin A2
haemoglobin AIc
haemoglobin Anti-Lepore
haemoglobin Bart's
haemoglobin C
haemoglobin C disease
haemoglobin Chesapeake
haemoglobin Constant Spring
haemoglobin DPunjab
haemoglobin E
haemoglobin F
haemoglobin Gower-1

Literary usage of Haemoglobin

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Text Book of Physiology by Michael Foster (1899)
"In dilute solutions, or in a thin layer, the reduced haemoglobin lets through so much of the green rays that they preponderate over the red, ..."

2. Surgery, Gynecology & Obstetrics by The American College of Surgeons, Franklin H. Martin Memorial Foundation (1915)
"January 4, 1915: haemoglobin 19 per cent. January 7: Transfusion of 500 ccm. of ... haemoglobin 31 per cent. Polyuria and increased perspiration after the ..."

3. A Text Book of Physiology by Michael Foster (1893)
"We have spoken of the combination of haemoglobin with oxygen as being a peculiar one. The peculiarity consists in the facts that the oxygen may be ..."

4. A Manual of clinical diagnosis by means of laboratory methods, for students by Charles Edmund Simon (1902)
"Nitric Oxide haemoglobin.—The blood in cases of poisoning with nitric oxide, owing to the presence of nitric oxide haemoglobin, yields a spectrum which is ..."

5. Elements of the Comparative Anatomy of Vertebrates by Gustav Mann, Walther Löb, Henry William Frederic Lorenz, Robert Wiedersheim, William Newton Parker, Thomas Jeffery Parker, Harry Clary Jones, Sunao Tawara, Leverett White Brownell, Max Julius Louis Le Blanc, Willis Rodney Whitney, John Wesley Brown, Wi (1906)
"The Gaseous Compounds of haemoglobin and its Optical Properties During its passage through the lungs the blood of vertebrates becomes saturated with oxygen, ..."

6. Respiration by John Scott Haldane (1922)
"The above equation may therefore be generalized in the form 1.65 (9—85) -(1-5) (1+25) taking a as representing the affinity of the gas for haemoglobin as ..."

7. The Chemical News and Journal of Industrial ScienceChemistry (1902)
"He now examines the question whether oxy-haemoglobin presente definite ... Sorel! whose observations were not conducted with solutions of haemoglobin, ..."

8. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1887)
"One gramme of pure haemoglobin combines with about 3.5 cc CO, at a pressure of ... No decomposition of the haemoglobin occurred.—Beitriige zur Physiologic ..."

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