radiation therapy

noun

: radiotherapy

Examples of radiation therapy 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.
Biden later underwent radiation therapy and completed that course of treatment last fall. — Jasmine Baehr, FOXNews.com, 8 Sep. 2026 Some radiation therapies also carry a lower risk than others. — Hanna Wickes, Charlotte Observer, 10 Aug. 2026 Certain radiation therapies also carry a lower risk of causing impotence than others. — Hanna Wickes, Kansas City Star, 10 Aug. 2026 Joe Biden had surgery to remove skin cancer lesions in September last year and completed a round of radiation therapy for prostate cancer in October. — T. Michelle Murphy, Time, 9 Aug. 2026 See All Example Sentences for radiation therapy

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of radiation therapy was in 1922

Rhymes for radiation therapy

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Browse Nearby Words

radiation sickness
radiation therapy
radiative
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Cite this Entry

“Radiation therapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiation%20therapy. Accessed 13 Sep. 2026.

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Medical Definition

radiation therapy

noun
: radiotherapy

More from Merriam-Webster on radiation therapy

Britannica.com: Encyclopedia article about radiation therapy

Last Updated: - Updated example sentences
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