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aldosterone

American  
[al-doh-sti-rohn, al-doh-sti-rohn, al-dos-tuh-rohn] / ˌæl doʊ stɪˈroʊn, ˈæl doʊ stɪˌroʊn, ælˈdɒs təˌroʊn /

noun

Biochemistry.
  1. a hormone produced by the cortex of the adrenal gland, instrumental in the regulation of sodium and potassium reabsorption by the cells of the tubular portion of the kidney.


aldosterone British  
/ ælˈdɒstəˌrəʊn /

noun

  1. the principal mineralocorticoid secreted by the adrenal cortex. A synthesized form is used in the treatment of Addison's disease. Formula: C 21 H 27 O 5

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

aldosterone Scientific  
/ ăl-dŏstə-rōn′ /
  1. A steroid hormone secreted by the adrenal cortex that regulates salt and water balance in the body. Chemical formula: C 21 H 28 O 5 .


Etymology

Origin of aldosterone

First recorded in 1950–55; ald(ehyde) + -o- + ster(ol) + -one

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

AstraZeneca said that Baxfendy treats hypertension in a new way by targeting aldosterone, a hormone that raises blood pressure.

From The Wall Street Journal May 18, 2026

Blood pressure is heavily influenced by a hormone called aldosterone, which helps regulate salt and water levels in the body.

From Science Daily Apr. 3, 2026

For the second factor, mice were exposed to an aldosterone infusion.

From Science Daily May 30, 2024

Other steroid hormones include aldosterone and cortisol, which are released by the adrenal glands along with some other types of androgens.

From Textbooks Jun. 9, 2022

Because it is produced in the cortex of the adrenal gland and affects the concentrations of minerals Na+ and K+, aldosterone is referred to as a mineralocorticoid, a corticosteroid that affects ion and water balance.

From Textbooks Jun. 9, 2022

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