deionize

verb

de·​ion·​ize (ˌ)dē-ˈī-ə-ˌnīz How to pronounce deionize (audio)
deionized; deionizing; deionizes

transitive verb

: to remove ions from
deionize water by ion exchange

Examples of deionize in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The cleanup module employs a multistage filtration system along with several deionizing beds. IEEE Spectrum, 30 Oct. 2018 Interestingly, the cooling system will use water, deionized to prevent corrosion and pressurized to raise the boiling point to about 150 degrees Celsius. Jay Bennett, Popular Mechanics, 6 Aug. 2018

Word History

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of deionize was in 1906

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Cite this Entry

“Deionize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deionize. Accessed 7 Jul. 2026.

Kids Definition

deionize

verb
de·​ion·​ize (ˈ)dē-ˈī-ə-ˌnīz How to pronounce deionize (audio)
: to remove ions from

Medical Definition

deionize

transitive verb
de·​ion·​ize
variants or British deionise
deionized or British deionised; deionizing or British deionising
: to remove ions from
deionize water by ion exchange
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