NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,863 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.

conventional treatment
(kun-VEN-shuh-nul TREET-ment)
Treatment that is widely accepted and used by most healthcare professionals. It is different from alternative or complementary therapies, which are not as widely used. Examples of conventional treatment for cancer include chemotherapy, radiation therapy, and surgery. Also called conventional therapy.