NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,492 terms related to cancer and medicine.

We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.

Browse:
precancerous
(pree-KAN-seh-rus)
A term used to describe a condition that may (or is likely to) become cancer. Also called premalignant.