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.
Other factors outside personal control include dense breast tissue, starting menstruation before age 12, reaching menopause after age 55, never having been pregnant and prior radiation therapy to the chest before age 30. — Samantha Agate, Charlotte Observer, 14 Oct. 2026 Adaptive radiation therapy is also used to more precisely target other cancers, doctors say. — Carolyn Gusoff, CBS News, 14 Oct. 2026 Depending on what is found, possible treatments can include chemotherapy and radiation therapy, Di Maio told Italy’s private Sky TG24. — Nicole Winfield, Los Angeles Times, 11 Oct. 2026 Treatment for esophageal cancer can include surgery, radiation therapy, laser therapy, chemotherapy or immunotherapy. — Angeline Jane Bernabe, ABC News, 18 Sep. 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 20 Oct. 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

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