follow Dictionary.com

Why is the ninth month called September?

glutathione

[gloo-tuh-thahy-ohn] /ˌglu təˈθaɪ oʊn/
noun, Biochemistry
1.
a crystalline, water-soluble peptide of glutamic acid, cysteine, and glycine, C 10 H 17 N 3 O 6 S, found in blood and in animal and plant tissues, and important in tissue oxidations and in the activation of some enzymes.
Origin
1920-1925
1920-25; gluta(mic acid) + thi- + -one
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples for glutathione
  • glutathione occurs in high levels in the eye and helps clean up these free radicals.
  • Without glutathione, the body's ability to detoxify itself is greatly impaired, leading to oxidative stress.
  • glutathione is critically important to both bowel and lung function.
British Dictionary definitions for glutathione

glutathione

/ˌɡluːtəˈθaɪəʊn; -θaɪˈəʊn/
noun
1.
(biochem) a tripeptide consisting of glutamic acid, cysteine, and glycine: important in biological oxidations and the activation of some enzymes. Formula: C10H17N3O6S
Word Origin
C20: from gluta(mic acid) + thi- + -one
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
Cite This Source
glutathione in Medicine

glutathione glu·ta·thi·one (glōō'tə-thī'ōn')
n.
A tripeptide of the amino acids glycine, cystine, and glutamic acid occurring widely in plant and animal tissues and forming reduced and oxidized forms important in biological oxidation-reduction reactions.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
glutathione in Science
glutathione
  (gl'tə-thī'ōn')   
A polypeptide consisting of glycine, cysteine, and glutamic acid that occurs widely in plant and animal tissues. It is important in cellular respiration in both plants and animals, and serves as a cofactor for many enzymes. It is a major protective mechanism against oxidative stress. For example, it protects red blood cells from hydrogen peroxide, a toxic byproduct of certain metabolic reactions.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Article for glutathione

a tripeptide (i.e., compound composed of three amino acids), the chemical name of which is gamma-l-glutamyl-l-cysteinylglycine. Widely distributed in nature, it has been isolated from yeast, muscle, and liver. Glutathione has a role in the respiration of both mammalian and plant tissues and protects red blood cells against hydrogen peroxide, which is a toxic by-product of many metabolic reactions, by reducing the peroxide to water. It serves as a cofactor for various enzymes; e.g., glyceraldehyde-3-phosphate dehydrogenase, to which it becomes firmly bound.

Learn more about glutathione with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Difficulty index for glutathione

Few English speakers likely know this word

Word Value for glutathione

15
0
Scrabble Words With Friends