NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,846 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 oophorectomy
(PROH-fih-LAK-tik oh-oh-foh-REK-toh-mee)
Surgery intended to reduce the risk of ovarian cancer by removing the ovaries before disease develops.