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myoglobin

[mahy-uh-gloh-bin, mahy-uh-gloh-] /ˌmaɪ əˈgloʊ bɪn, ˈmaɪ əˌgloʊ-/
noun, Biochemistry
1.
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
1920-1925
1920-25; myo- + globin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for myoglobin
  • The key, she believes, may be the iron content of the blood and muscle proteins hemoglobin and myoglobin.
  • The human body needs iron to make the oxygen-carrying proteins hemoglobin and myoglobin.
  • Cosmetically, this is added to sausage because it combines with myoglobin in animal muscle to keep it from turning gray.
  • He will dissolve samples of the coprolite in a buffer solution and then add antibodies that recognize myoglobin.
British Dictionary definitions for myoglobin

myoglobin

/ˌmaɪəʊˈɡləʊbɪn/
noun
1.
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)
n.
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
myoglobin
  (mī'ə-glō'bĭn)   
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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Encyclopedia Article for myoglobin

a protein found in the muscle cells of animals. It functions as an oxygen-storage unit, providing oxygen to the working muscles. Diving mammals such as seals and whales are able to remain submerged for long periods because they have greater amounts of myoglobin in their muscles than other animals do.

Learn more about myoglobin with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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