Definitions for radiation therapy
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Random House Webster's College Dictionary
radia′tion ther`apy(n.)
radiotherapy.
Category: Medicine
Princeton's WordNet
radiotherapy, radiation therapy, radiation, actinotherapy, irradiation(noun)
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
Wiktionary
radiation therapy(Noun)
The use of ionizing radiation to treat disease, especially cancer.
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"radiation therapy." Definitions.net. STANDS4 LLC, 2013. Web. 21 May 2013. <http://www.definitions.net/definition/radiation therapy>.