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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-dŏs′tə-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:

Instead of remaining constantly high, aldosterone showed repeated bursts of secretion at night while the overall day-night rhythm of hormone activity remained intact.

From Science Daily ● Sep. 14, 2026

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

The researchers also measured two hormones that are affected by liquorice and that regulate fluid balance: renin and aldosterone.

From Science Daily ● Mar. 14, 2024

The hormone aldosterone stimulates the reabsorption of water and sodium ions in the kidney, which results in increased blood pressure and volume.

From Textbooks ● Jun. 9, 2022

The main mineralocorticoid is aldosterone, which regulates the concentration of ions in urine, sweat, and saliva.

From Textbooks ● Apr. 25, 2013

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