adrenal gland

Definition / meaning of adrenal gland

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.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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