NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,278 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.
- T lymphocyte
- listen (… LIM-foh-site)
A type of white blood cell. T lymphocytes are part of the immune system and develop from stem cells in the bone marrow. They help protect the body from infection and may help fight cancer. Also called T cell and thymocyte.