radiotherapy

[ rey-dee-oh-ther-uh-pee ]

/ ˌreɪ di oʊˈθɛr ə pi /

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noun Medicine/Medical.

treatment of disease by means of x-rays or of radioactive substances.

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Also called radiation therapy.

Origin of radiotherapy

First recorded in 1900–05; radio- + therapy

OTHER WORDS FROM radiotherapy

ra·di·o·ther·a·pist, noun

Words nearby radiotherapy

radiotelephony, radio telescope, radioteletype, radiotherapeutic, radiotherapeutics, radiotherapy, radiothermy, radiothon, radiothorium, radiotoxemia, radiotoxic

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use radiotherapy in a sentence

After surgery, the patients all received the standard therapy of chemo, radiotherapy and endocrine therapy.
How Big Pharma Holds Back in the War on Cancer|ProPublica|April 23, 2014|DAILY BEAST

British Dictionary definitions for radiotherapy

radiotherapy

/ (ˌreɪdɪəʊˈθɛrəpɪ) /

noun

the treatment of disease, esp cancer, by means of alpha or beta particles emitted from an implanted or ingested radioisotope, or by means of a beam of high-energy radiationCompare chemotherapy

Derived forms of radiotherapy

radiotherapeutic (ˌreɪdɪəʊˌθɛrəˈpjuːtɪk), adjectiveradiotherapeutically, adverbradiotherapist, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for radiotherapy

radiotherapy

[ rā′dē-ō-thĕr′ə-pē ]

Treatment of disease with radiation, especially by selective irradiation with x-rays or other ionizing radiation and by ingestion of radioisotopes.

Other words from radiotherapy

ra′di•o•ther′a•pist n.