NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,811 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.

feces
(FEE-seez)
The material in a bowel movement. Feces is made up of undigested food, bacteria, mucus, and cells from the lining of the intestines. Also called stool.