NCI Dictionary of Cancer Terms

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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.

folate antagonist
(FOH-layt an-TA-guh-nist)
A type of drug that stops cells from using folic acid to make DNA and may kill cancer cells. Certain folate antagonists are used to treat some types of cancer and inflammatory conditions, such as rheumatoid arthritis. Also called antifolate and folic acid antagonist.