NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,894 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.
- senega root
- listen (SEH-neh-guh root)
- The root of an herb called Polygala senega. It has been used in some cultures to treat certain medical problems, including problems of the respiratory system.