NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,800 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.

secrete
(seh-KREET)
To form and release a substance. In the body, cells secrete substances, such as sweat that cools the body or hormones that act in other parts of the body.