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.

complementary medicine
(KOM-pleh-MEN-tuh-ree MEH-dih-sin)
Treatments that are used along with standard treatments, but are not considered standard. Standard treatments are based on the results of scientific research and are currently accepted and widely used. Less research has been done for most types of complementary medicine. Complementary medicine includes acupuncture, dietary supplements, massage therapy, hypnosis, and meditation. For example, acupuncture may be used with certain drugs to help lessen cancer pain or nausea and vomiting.