NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,441 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.
- photosensitizing agent
- listen (FOH-toh-SEN-sih-ty-zing AY-jent)
- A drug used in photodynamic therapy. When absorbed by cancer cells and exposed to light, the drug becomes active and kills the cancer cells. Also called photosensitizer.