radionuclide

noun

ra·​dio·​nu·​clide ˌrā-dē-ō-ˈnü-ˌklīd How to pronounce radionuclide (audio)
-ˈnyü-
: a radioactive nuclide

Examples of radionuclide 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.
In that case, radionuclides would have been spewed over a wide area, possibly including Tokyo. — Elizabeth Kolbert, New Yorker, 7 Apr. 2025 Not far from here, toxic chemicals and radionuclides sit below ground in corroding, decades-old tanks. — IEEE Spectrum, 29 Apr. 2020 Enter radionuclide therapy, a class of cancer medicines which deliver radioactive atoms or radionuclides, to tumors deep inside the body with extreme precision. — Juergen Eckhardt, Forbes.com, 28 Apr. 2026 These studies have shown that radionuclide movement is influenced by environmental factors, such as soil composition, moisture and biological activity, and that contamination can remain mobile and biologically relevant for decades. — Eduardo B. Farfán, The Conversation, 21 Apr. 2026 See All Example Sentences for radionuclide

Word History

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of radionuclide was in 1947

Rhymes for radionuclide

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Browse Nearby Words

radionics
radionuclide
radio observatory
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Cite this Entry

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

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Medical Definition

radionuclide

noun
ra·​dio·​nu·​clide -ˈn(y)ü-ˌklīd How to pronounce radionuclide (audio)
: a radioactive nuclide
Last Updated: - Updated example sentences
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