radiation therapy

The use of high-energy radiation from x-rays, gamma rays, neutrons, protons, and other sources to kill cancer cells and shrink tumors. Radiation may come from a machine outside the body (external-beam radiation therapy), or it may come from radioactive material placed in the body near cancer cells (internal radiation therapy). Systemic radiation therapy uses a radioactive substance, such as a radiolabeled monoclonal antibody, that travels in the blood to tissues throughout the body. Also called radiotherapy and irradiation.

English dictionary of cancer terms . 2015.

Look at other dictionaries:

  • Radiation therapy — Radiation (medicine) redirects here. It is not to be confused with Radiation (pain) or Radiology. Radiation therapy Intervention ICD 10 PCS D ICD 9 CM …   Wikipedia

  • radiation therapy — n RADIOTHERAPY * * * radiotherapy …   Medical dictionary

  • radiation therapy — radiotherapy. * * * or radiotherapy or therapeutic radiology Use of radiation sources to treat or relieve diseases, usually cancer (including leukemia). The ionizing radiation primarily used to destroy diseased cells works best on fast growing… …   Universalium

  • radiation therapy — noun (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance • Syn: ↑radiotherapy, ↑radiation, ↑actinotherapy, ↑irradiation • Derivationally related forms: ↑radiotherapist ( …   Useful english dictionary

  • radiation therapy — n. treatment of diseases by exposure to high energy radiation from radioactive sources, use of radiation to damage cancer cells, radiotherapy …   English contemporary dictionary

  • radiation therapy — noun the use of ionizing radiation to treat disease, especially cancer Syn: radiotherapy, therapeutic radiology …   Wiktionary

  • radiation therapy — (also radiation treatment) noun radiotherapy …   English new terms dictionary

  • radiation therapy — noun Date: 1922 radiotherapy …   New Collegiate Dictionary

  • radiation therapy — radia′tion ther apy n. med radiotherapy …   From formal English to slang

  • radiation therapy — /reɪdiˈeɪʃən θɛrəpi/ (say raydee ayshuhn theruhpee) noun → radiotherapy …   Australian English dictionary

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