Home/Topics/Treatments & Supportive Care/x-ray therapy Treatments & Supportive Care Cancer & Oncology x-ray therapy Listen Save Share Print Meaning of x-ray therapy: A type of radiation therapy that uses high-energy radiation from x-rays to kill cancer cells and shrink tumors. Definition of x-ray therapy A type of radiation therapy that uses high-energy radiation from x-rays to kill cancer cells and shrink tumors. Written and maintained by James Murray · Last updated July 21, 2026 Educational reference, not medical advice. Read the limitations. Keep exploringRelated termsMore in Treatments & Supportive Care → Cancer & Tumors non-Hodgkin lymphoma Named for what it is not, this family of lymphocyte cancers spans many separate diseases with very different growth rates and outlooks. Read definition → General Medical Terms ICE ICE is a combination chemotherapy regimen used for certain lymphomas that have returned or resisted earlier lines of treatment. Read definition → Medications & Pharmacology metronidazole The drug arrives inactive and becomes a poison only inside organisms that live without oxygen, which is the source of its narrow aim. Read definition → General Medical Terms regional Whatever the specialty, the word draws a boundary around one area, and the specialty itself decides where that boundary falls. Read definition →
Cancer & Tumors non-Hodgkin lymphoma Named for what it is not, this family of lymphocyte cancers spans many separate diseases with very different growth rates and outlooks. Read definition →
General Medical Terms ICE ICE is a combination chemotherapy regimen used for certain lymphomas that have returned or resisted earlier lines of treatment. Read definition →
Medications & Pharmacology metronidazole The drug arrives inactive and becomes a poison only inside organisms that live without oxygen, which is the source of its narrow aim. Read definition →
General Medical Terms regional Whatever the specialty, the word draws a boundary around one area, and the specialty itself decides where that boundary falls. Read definition →