haptoglobin

noun

hap·​to·​glo·​bin ˈhap-tə-ˌglō-bən How to pronounce haptoglobin (audio)
: any of several forms of an alpha globulin found in blood serum that can combine with free hemoglobin in the plasma and thereby prevent the loss of iron into the urine

Examples of haptoglobin in a Sentence

Recent Examples on the Web If more blood is being destroyed than usual, the level of haptoglobin drops. Lisa Sanders, M.d., New York Times, 18 Apr. 2018

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'haptoglobin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

borrowed from French haptoglobine, shortened from earlier prosaptoglobine, from Greek prosáptein "to fasten, attach to" (from pros- pros- + háptein "to fasten") + French -o- -o- + globine globin — more at haptics

Note: Term introduced by the French biochemist Michel Polonovski (1889-1954) and the endocrinologist Max-Fernand Jayle (1913-78) in "Sur la préparation d'une nouvelle fraction des protéines plasmatiques, l'haptoglobine," Comptes rendus hebdomadaires des séances de l'Académie des sciences, tome 211 (juillet-décembre, 1940), pp. 517-19.

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of haptoglobin was in 1941

Dictionary Entries Near haptoglobin

Cite this Entry

“Haptoglobin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/haptoglobin. Accessed 20 Feb. 2024.

Medical Definition

haptoglobin

noun
hap·​to·​glo·​bin ˈhap-tə-ˌglō-bən How to pronounce haptoglobin (audio)
: any of several forms of an alpha globulin found in blood serum that can combine with free hemoglobin in the plasma and thereby prevent the loss of iron into the urine

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