adrenal gland

noun

variants or less commonly adrenal
plural adrenal glands also adrenals
: either of a pair of complex endocrine organs near the anterior medial border of the kidney consisting of a mesodermal cortex that produces glucocorticoid, mineralocorticoid, and androgenic hormones and an ectodermal medulla that produces epinephrine and norepinephrine

called also suprarenal gland

Examples of adrenal gland in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
About 5 percent of testosterone is produced by the adrenal glands, which sit above the kidneys. Jackie Flynn Mogensen, Scientific American, 20 Aug. 2026 Specifically, when temperatures rise, the hypothalamic-pituitary-adrenal (HPA) axis activates to help regulate core body temperature, triggering the adrenal glands to release cortisol to manage the thermal strain. Nicole F. Roberts, Forbes.com, 20 July 2026 When someone encounters a threat, the sympathetic nervous system stimulates the adrenal glands to release the stress hormones adrenaline and cortisol. Angela Ryan Lee, Verywell Health, 11 June 2026 Mendivil underwent extensive chemotherapy and radiation treatments, and surgeons removed her right kidney and right adrenal gland in an effort to save her life. Jordan Greene, PEOPLE, 11 June 2026 See All Example Sentences for adrenal gland

Word History

First Known Use

1875, in the meaning defined above

Time Traveler
The first known use of adrenal gland was in 1875

Browse Nearby Words

Cite this Entry

“Adrenal gland.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adrenal%20gland. Accessed 25 Aug. 2026.

Kids Definition

adrenal gland

noun
: either of a pair of endocrine glands that are located near the kidney and produce the hormone epinephrine

Medical Definition

adrenal gland

noun
: either of a pair of complex endocrine organs near the anterior medial border of the kidney consisting of a mesodermal cortex that produces glucocorticoid, mineralocorticoid, and androgenic hormones and an ectodermal medulla that produces epinephrine and norepinephrine

called also adrenal, suprarenal gland

More from Merriam-Webster on adrenal gland

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster