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.

diverticulum
(DY-ver-TIH-kyoo-lum)
A small pouch or sac that bulges out from the wall of a hollow organ, such as the colon.