adrenal gland

one of two hormone secreting glands functioning in the Endocrine system

In mammals, the adrenal glands (also known as suprarenal glands) are the triangle-shaped endocrine glands that sit on top of the kidneys; their name indicates that position (ad-, "near" or "at" + -renes, "kidneys"). They are chiefly responsible for regulating the stress response through the synthesis of corticosteroids and catecholamines, including cortisol and adrenaline.
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Adrenal gland n. Either of two small, dissimilarly shaped endocrine glands, one located above each kidney, consisting of the cortex, which secretes [more]Adrenal gland - Community and Resources

Noun
1. either of a pair of complex endocrine glands situated near the kidney
(synonym) adrenal, suprarenal gland
(hypernym) endocrine gland, endocrine, ductless gland
(part-holonym) kidney
(part-meronym) adrenal cortex

[ah-DREE-nal]
A small gland that produces steroid hormones, adrenaline, and noradrenaline, which help control heart rate, bloodpressure, and other important body functions. There are two adrenal glands,one located on top of each kidney.