NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,879 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 (OS-toh-mee)
- An operation to create an opening (a stoma) from an area inside the body to the outside. Colostomy and urostomy are types of ostomies.