NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,260 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.
- adrenal medulla
- listen (uh-DREE-nul meh-DOO-luh)
The inner part of the adrenal gland (a small organ on top of each kidney). The adrenal medulla makes chemicals such as epinephrine (adrenaline) and norepinephrine (noradrenaline) which are involved in sending nerve signals.