ionize

verb

ion·​ize ˈī-ə-ˌnīz How to pronounce ionize (audio)
ionized; ionizing

transitive verb

: to convert wholly or partly into ions
ionizable adjective
ionizer noun

Examples of ionize 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.
Where appropriate, clinicians may also consider alternative imaging methods that do not involve ionizing radiation, such as MRI or ultrasound – especially for younger patients or when repeat imaging is anticipated. New Atlas, 19 Apr. 2025 The technology exposes people to ionizing radiation, which doctors and researchers have long known can cause DNA damage. Jamie Ducharme, Health, 18 Apr. 2025 Additionally, these scans irradiate the lungs, breasts, thyroid, and digestive system which are more sensitive to the effects of ionizing radiation. Jesse Pines, Forbes.com, 17 Apr. 2025 Both of those particles represent ionizing radiation, which can be harmful to human health. Margherita Bassi, Smithsonian Magazine, 21 Apr. 2025 See All Example Sentences for ionize

Word History

Etymology

ion + -ize, after German ionisiren (now ionisieren) or French ioniser

First Known Use

1898, in the meaning defined at transitive sense

Time Traveler
The first known use of ionize was in 1898

Cite this Entry

“Ionize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ionize. Accessed 17 May. 2025.

Kids Definition

ionize

verb
ion·​ize ˈī-ə-ˌnīz How to pronounce ionize (audio)
ionized; ionizing
1
: to convert wholly or partly into ions
2
: to become ionized
ionizable adjective
ionization noun
ionizer noun

Medical Definition

ionize

verb
ion·​ize
variants or chiefly British ionise
ionized or chiefly British ionised; ionizing or chiefly British ionising

transitive verb

: to convert wholly or partly into ions
ionizable adjective
or chiefly British ionisable
ionization noun
or chiefly British ionisation

More from Merriam-Webster on ionize

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