Definition
The controlled use of high-energy radiation to kill cancer cells—essentially nuking tumors with precision beams while trying to avoid collateral damage to healthy tissue. It's one of the main weapons in oncology's arsenal, used either solo or tag-teaming with chemotherapy and surgery. The medical equivalent of fighting fire with fire, except the fire is ionizing radiation and the goal is cellular destruction.
Example Usage
After surgery removed the bulk of the tumor, she underwent six weeks of radiotherapy to eliminate any remaining cancer cells.
Source: Common medical terminology
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