NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,777 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- prophylactic cranial irradiation
- listen (PROH-fih-LAK-tik KRAY-nee-ul ir-RAY-dee-AY-shun)
- Radiation therapy to the head to reduce the risk that cancer will spread to the brain.