radiotherapy
NounOpen English WordNet
Noun (1)
- (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substanceSynonyms: radiation therapyradiationactinotherapyirradiationType of therapy, treatmentKinds radium therapy, X-ray therapy, phototherapy
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Webster's Dictionary (1913)
Ra′di·o·ther′a·py (rā′dĭ-ŏ-thĕr′ȧ-py̆), noun
Origin: Radio- + therapy.
Medicine Treatment of disease by means of x-rays or radioactivity. Radiotherapy of cancer is based on the fact that cancer cells are more sensitive to radiation than most other cells in the body.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54 · with additions: +PJC, 1913 supplement