al·​do·​ste·​rone al-ˈdä-stə-ˌrōn How to pronounce aldosterone (audio)
-ˈstir- How to pronounce aldosterone (audio)
: a steroid hormone C21H28O5 of the adrenal cortex that functions in the regulation of the salt and water balance of the body

Example Sentences

Recent Examples on the Web Baxdrostat has the net effect of lowering blood pressure by blocking the production of a hormone called aldosterone, which regulates salt and water in the body. Ryan Cross,, 9 Jan. 2023 These, too, are part of the Addisonian picture, a result of low levels of another adrenal hormone called aldosterone. H Lee Kagan, Discover Magazine, 11 Jan. 2011 The new medication gets around that problem by blocking an enzyme the body needs to produce aldosterone. Linda Carroll, NBC News, 7 Nov. 2022 Her body does not produce enough cortisol and aldosterone. Meghan Mccormick, Forbes, 10 Sep. 2021 She was started on two medications: hydrocortisone, to replace the cortisol, and Florinef, to replace the aldosterone. Lisa Sanders, New York Times, 30 Sep. 2020 Another adrenal hormone, aldosterone, controls sodium levels, and through that, blood pressure. Lisa Sanders, New York Times, 30 Sep. 2020 To make matters worse, glycyrrhetinic acid also interferes with enzymes in the liver that influence aldosterone levels, another critical steroid hormone—which exacerbates all the other health effects of the toxin. Beth Mole, Ars Technica, 25 Sep. 2020 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'aldosterone.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


aldehyde + -o- + -sterone

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of aldosterone was in 1954

Dictionary Entries Near aldosterone

Cite this Entry

“Aldosterone.” Dictionary, Merriam-Webster, Accessed 1 Apr. 2023.

Medical Definition


: a steroid hormone C21H28O5 of the adrenal cortex that functions in the regulation of the salt and water balance of the body

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