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[mahy-uh-gloh-bin, mahy-uh-gloh-] /ˌmaɪ əˈgloʊ bɪn, ˈmaɪ əˌgloʊ-/
noun, Biochemistry.
hemoglobin of muscle, weighing less and carrying more oxygen and less carbon monoxide than blood hemoglobin.
Also, myohemoglobin
[mahy-uh-hee-muh-gloh-bin, ‐hem-uh‐] /ˌmaɪ əˈhi məˌgloʊ bɪn, ‐ˈhɛm ə‐/ (Show IPA)
Origin of myoglobin
1920-25; myo- + globin Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for myoglobin


a protein that is the main oxygen-carrier of muscle
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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myoglobin in Medicine

myoglobin my·o·glo·bin (mī'ə-glō'bĭn)
Abbr. Mb
The oxygen-transporting protein of muscle, resembling blood hemoglobin in function but with only one heme as part of the molecule and with one fourth the molecular weight. Also called muscle hemoglobin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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myoglobin in Science
An iron-containing protein found in muscle fibers, consisting of heme connected to a single peptide chain that resembles one of the subunits of hemoglobin. Myoglobin combines with oxygen released by red blood cells and transfers it to the mitochondria of muscle cells, where it is used to produce energy.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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