NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,916 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.

ultraviolet radiation therapy
(UL-truh-VY-oh-let RAY-dee-AY-shun THAYR-uh-pee)
A form of radiation used in the treatment of cancer.