adrenal gland

American  

noun

Anatomy.

1. one of a pair of ductless glands, located above the kidneys, consisting of a cortex, which produces steroidal hormones, and a medulla, which produces epinephrine and norepinephrine.

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adrenal gland British  

noun

1. Also called: suprarenal gland.  an endocrine gland at the anterior end of each kidney. Its medulla secretes adrenaline and noradrenaline and its cortex secretes several steroid hormones

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adrenal gland Scientific  

/ ə-drē′nəl /

1. Either of two small endocrine glands, one located above each kidney. The outer portion, or cortex, secretes steroid hormones (corticosteroids). The inner portion, or medulla, secretes epinephrine and norepinephrine.

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Etymology

Origin of adrenal gland

First recorded in 1870–75

Example Sentences

“Copenhagen” taps the adrenal gland by keeping viewers off balance about who is who and what is what, beginning with the opening subtitles: President—and former CIA director—George H.W.

From The Wall Street Journal • Dec. 26, 2025

Cushing’s syndrome is sometimes the result of a tumor in the adrenal gland or elsewhere in the brain, requiring surgery.

From New York Times • Feb. 26, 2024

The team focused on glucocorticoid hormones in the adrenal gland which regulate many physiological functions including metabolism and appetite.

From Science Daily • Oct. 11, 2023

These neurons trigger the adrenal gland to release hormones like adrenaline that travel through the blood to reach those organs and increase the rate at which they undergo the fear response.

From Salon • Sep. 6, 2023

Its cell-destroying capacity is now clinically utilized in the treatment of a rare type of cancer which develops in the adrenal gland.

From "Silent Spring" by Rachel Carson