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ion exchange

the process of reciprocal transfer of ions between a solution and a resin or other suitable solid.
Origin of ion exchange
1920-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for ion-exchange
Historical Examples
  • He reached hastily for water and found the tall plastic column of the ion-exchange apparatus empty.

    The Syndic C.M. Kornbluth
British Dictionary definitions for ion-exchange

ion exchange

the process in which ions are exchanged between a solution and an insoluble solid, usually a resin. It is used to soften water, to separate radioactive isotopes, and to purify certain industrial chemicals
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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ion-exchange in Medicine

ion exchange n.
A reversible chemical reaction occurring between an insoluble solid and a solution during which ions may be interchanged, used in the separation of radioactive isotopes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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ion-exchange in Science
ion exchange  
A reversible chemical reaction between two substances (usually a relatively insoluble solid and a solution) during which ions of equal charge may be interchanged. Ion exchange is used in water softening and purification, chemical analysis, the separation of radioactive isotopes, and kidney dialysis. ◇ Cation exchange is the exchange of positively charged ions. ◇ Anion exchange is the exchange of negatively charged ions.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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