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chelation

[kee-ley-shuh n] /kiˈleɪ ʃən/
noun
1.
Chemistry. the process of chelating.
2.
Medicine/Medical.
  1. a method of removing certain heavy metals from the bloodstream, used especially in treating lead or mercury poisoning.
  2. a controversial treatment for arteriosclerosis that attempts to remove calcium deposits from the inner walls of the coronary arteries.
Origin
1930-1935
1930-35; chelate + -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for chelation
  • Iron chelation therapy is used to remove the excess iron caused by blood transfusions.
British Dictionary definitions for chelation

chelation

/ˈkiːleɪʃən/
noun
1.
(chem) the process by which a chelate is formed
2.
(animal husbandry) the process by which trace elements in an animal's feed are bonded to amino acids, ensuring their absorption into the animal's body
3.
(geology) the chemical removal of metallic ions in a mineral or rock by weathering
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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chelation in Science
chelation
  (kĭ-lā'shən)   
The combination of a metal ion with a chemical compound to form a ring. Chelation is used in the industrial separation and extraction of metals and to treat metal poisoning.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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