| NOUN | act | actinotherapy, radiotherapy, radiation therapy, radiation, irradiation | (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance |
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| Meaning | (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance. | |
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| Synonyms | radiotherapy, radiation therapy, radiation, irradiation | |
| Category | medicine, medical specialty | The branches of medical science that deal with nonsurgical techniques |
| Narrower | X-ray therapy | The therapeutic use of X rays |
| phototherapy | The use of strong light to treat acne or hyperbilirubinemia of the newborn | |
| radium therapy, Curietherapy | The use of radium in radiation therapy | |
| Broader | therapy | (medicine) the act of caring for someone (as by medication or remedial training etc.) |
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