NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,881 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 (EH-pih-DER-ul)
- Having to do with the space between the wall of the spinal canal and the covering of the spinal cord. An epidural injection is given into this space.