radioisotope

noun

ra·​dio·​iso·​tope ˌrā-dē-ō-ˈī-sə-ˌtōp How to pronounce radioisotope (audio)
: a radioactive isotope
radioisotopic adjective

Examples of radioisotope in a Sentence

Recent Examples on the Web Radioisotope gastric-emptying scan: This test involves eating food containing a radioisotope (a slightly radioactive substance) that shows up on a scan. Anna Giorgi, Verywell Health, 15 Oct. 2024 If the radioisotopes experiment is successful, over time the scientists hope to expand their work for the benefit of other endangered animals, such as elephants and pangolins. Chas Newkey-Burden, The Week Uk, theweek, 4 July 2024 Especially challenging were very specific military requirements regarding the half-life of the radioisotopes that would be dispersed by the weapons and the intensity of radioactivity emitted. William C. Potter, Foreign Affairs, 15 Dec. 2023 As the film depicts, Oppenheimer really did humiliate Strauss in front of Congress when the two men disagreed about exporting radioisotopes, a scene that is taken largely verbatim from the book. Vulture, 25 July 2023 See all Example Sentences for radioisotope 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'radioisotope.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1938, in the meaning defined above

Time Traveler
The first known use of radioisotope was in 1938

Dictionary Entries Near radioisotope

Cite this Entry

“Radioisotope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radioisotope. Accessed 30 Oct. 2024.

Kids Definition

radioisotope

noun
ra·​dio·​iso·​tope ˌrād-ē-ō-ˈī-sə-ˌtōp How to pronounce radioisotope (audio)
: a radioactive isotope

Medical Definition

radioisotope

noun
ra·​dio·​iso·​tope ˌrād-ē-ō-ˈī-sə-ˌtōp How to pronounce radioisotope (audio)
: a radioactive isotope compare radioelement
radioisotopic adjective
radioisotopically adverb

More from Merriam-Webster on radioisotope

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