NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,399 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.
- refractory cancer
- listen (reh-FRAK-tor-ee KAN-ser)
- Cancer that does not respond to treatment. The cancer may be resistant at the beginning of treatment or it may become resistant during treatment. Also called resistant cancer.