NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,926 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.

systemic therapy
(sis-TEH-mik THAYR-uh-pee)
Treatment using substances that travel through the bloodstream, reaching and affecting cells all over the body.