methemoglobin

noun
met·​he·​mo·​glo·​bin | \ ˌmet-ˈhē-mə-ˌglō-bən How to pronounce methemoglobin (audio) \

Definition of methemoglobin

: a soluble brown crystalline basic blood pigment that differs from hemoglobin in containing ferric iron and in being unable to combine reversibly with molecular oxygen

Examples of methemoglobin in a Sentence

Recent Examples on the Web Lab tests showed that the Rhode Island woman’s percentage of methemoglobin was 44%. Beth Mole, Ars Technica, "Blueish woman with chocolaty blood highlights rare risk of common anesthetic," 23 Sep. 2019 So, methemoglobinemia is a rare blood disorder that causes people to produce an abnormal amount of methemoglobin. Maggie O'neill, Health.com, "What is Methemoglobinemia? What to Know About the Rare Disorder That Turned One Woman’s Blood Blue," 19 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'methemoglobin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of methemoglobin

1870, in the meaning defined above

History and Etymology for methemoglobin

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Statistics for methemoglobin

Last Updated

13 Nov 2019

Time Traveler for methemoglobin

The first known use of methemoglobin was in 1870

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More Definitions for methemoglobin

methemoglobin

noun
met·​he·​mo·​glo·​bin
variants: or chiefly British methaemoglobin \ (ˈ)met-​ˈhē-​mə-​ˌglō-​bən How to pronounce methaemoglobin (audio) \

Medical Definition of methemoglobin

: a soluble brown crystalline basic blood pigment that is found in normal blood in much smaller amounts than hemoglobin, that is formed from blood, hemoglobin, or oxyhemoglobin by oxidation, and that differs from hemoglobin in containing ferric iron and in being unable to combine reversibly with molecular oxygen

called also ferrihemoglobin

More from Merriam-Webster on methemoglobin

Britannica.com: Encyclopedia article about methemoglobin

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