radiotherapy
/ˌreɪdioʊˈθɛrəpi/
noun
- Medical treatment that uses high-energy radiation (like X-rays) to kill cancer cells or shrink tumors.
- Modern radiotherapy machines can target tumors very precisely to protect healthy tissue.
- The patient underwent radiotherapy for six weeks to treat the lung tumor.
- Doctors often combine radiotherapy with chemotherapy for better results.