NCI Dictionary of Cancer Terms
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.
- listen (myoo-koh-SY-tis)
- A complication of some cancer therapies in which the lining of the digestive system becomes inflamed. Often seen as sores in the mouth.