单词	ion exchange resin
释义	ion exchange resin noun : an insoluble material of high molecular weight that contains groups which can be exchanged with ions in a solution with which it is in contact Example Sentences Recent Examples on the Web Those disposable filters use something called ion exchange resin to filter out copper, cadmium and zinc. Dan Sweeney, sun-sentinel.com, 19 July 2019 Word History First Known Use 1943, in the meaning defined above Medical Definition ion exchange resin noun : an insoluble material of high molecular weight that contains either acidic groups for exchanging cations or basic groups for exchanging anions and is used in ion-exchange processes and in medicine (as for reducing the sodium content of the body or the acidity of the stomach)
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