NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,214 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.
- carbon dioxide
- listen (KAR-bun dy-OK-side)
- A colorless, odorless gas. It is a waste product made by the body. Carbon dioxide travels in the blood from the body’s tissues to the lungs. Breathing out clears carbon dioxide from the lungs.