NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,409 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.
- disease-free survival
- listen (dih-ZEEZ ... ser-VY-vul)
- In cancer, the length of time after primary treatment for a cancer ends that the patient survives without any signs or symptoms of that cancer. In a clinical trial, measuring the disease-free survival is one way to see how well a new treatment works. Also called DFS, relapse-free survival, and RFS.