NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,846 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.

diagnostic procedure
(DY-ug-NAH-stik proh-SEE-jer)
A type of test used to help diagnose a disease or condition. Mammograms and colonoscopies are examples of diagnostic procedures. Also called diagnostic test.