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haemoglobin

British  
/ ˌhiːməʊˈɡləʊbɪn, ˌhɛm- /

noun

  1. a conjugated protein, consisting of haem and the protein globin, that gives red blood cells their characteristic colour. It combines reversibly with oxygen and is thus very important in the transportation of oxygen to tissues See also oxyhaemoglobin

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of haemoglobin

C19: shortened from haematoglobulin, from haematin + globulin the two components

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Having returned to the USA, Vonn explained she had a six-hour reconstructive operation on Wednesday, but also needed a blood transfusion as she had "low haemoglobin due to all the blood loss and surgeries".

From BBC Feb. 23, 2026

If there is more haemoglobin in the blood, more oxygen can be carried to the muscles, giving an athlete more resistance to lactic acid burn - helping them go faster for longer.

From BBC Jan. 27, 2025

People with beta thalassaemia struggle to produce enough haemoglobin, which is the protein in red blood cells that carries oxygen around the body.

From BBC Aug. 7, 2024

It is a genetic disease that is passed down through families and caused by defects in the body's instructions for manufacturing haemoglobin.

From BBC Aug. 7, 2024

In contrast with this, in higher vertebrates the blood pressure is high and the haemoglobin content of the blood is high, consequently both rate of blood-flow and oxygen-content are high.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" by Various

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