radiotherapy

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

nounMedicine/Medical.
  1. treatment of disease by means of x-rays or of radioactive substances.

Origin of radiotherapy

1
First recorded in 1900–05; radio- + therapy
  • Also called radiation therapy.

Other words from radiotherapy

  • ra·di·o·ther·a·pist, noun

Words Nearby radiotherapy

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use radiotherapy in a sentence

British Dictionary definitions for radiotherapy

radiotherapy

/ (ˌreɪdɪəʊˈθɛrəpɪ) /


noun
  1. 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 radiation: Compare chemotherapy

Derived forms of radiotherapy

  • radiotherapeutic (ˌreɪdɪəʊˌθɛrəˈpjuːtɪk), adjective
  • radiotherapeutically, adverb
  • radiotherapist, noun

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