adrenal glands

Definition of adrenal gland
National Cancer Institute

adrenal gland

(uh-DREE-nul...)
A small gland that makes steroid hormones, adrenaline, and noradrenaline. These hormones help control heart rate, blood pressure, and other important body functions. There are two adrenal glands, one on top of each kidney. Also called suprarenal gland.

Source: NCI Dictionary of Cancer Terms