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methaemoglobin

[met-hee-muh-gloh-bin, -hem-uh-, -hee-muh-gloh-, -hem-uh-] /mɛtˈhi məˌgloʊ bɪn, -ˈhɛm ə-, -ˌhi məˈgloʊ-, -ˌhɛm ə-/
noun

methemoglobin

or methaemoglobin

[met-hee-muh-gloh-bin, -hem-uh-, -hee-muh-gloh-, -hem-uh-] /mɛtˈhi məˌgloʊ bɪn, -ˈhɛm ə-, -ˌhi məˈgloʊ-, -ˌhɛm ə-/
noun, Biochemistry
1.
a brownish compound of oxygen and hemoglobin, formed in the blood, as by the use of certain drugs.
Also called ferrihemoglobin, hemiglobin.
Origin of methemoglobin
1865-1870
1865-70; met- + hemoglobin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for methaemoglobin

methaemoglobin

/mɛtˌhiːməˈɡləʊbɪn; mɛˌθiːmə-/
noun
1.
a brown compound of oxygen and haemoglobin formed in the blood by the action of certain drugs
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
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methaemoglobin in Medicine

methemoglobin met·he·mo·glo·bin (mět-hē'mə-glō'bĭn)
n.
Abbr. metHb
A brownish-red crystalline organic compound formed in the blood when hemoglobin is oxidated either by decomposition of the blood or by the action of various oxidizing drugs or toxic agents. It contains iron in the ferric state and cannot function as an oxygen carrier.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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