NCI Dictionary of Cancer Terms
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.
- listen (LOH-beh-leen)
- A substance that comes from a plant known as Indian tobacco, which is different from the tobacco used to make smoking products. It has been studied as a way to help people stop smoking. It is a type of alkaloid.