aldosterone

[al-doh-sti-rohn, al-doh-sti-rohn, al-dos-tuh-rohn]
noun Biochemistry.
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.

Origin:
1950–55; ald(ehyde) + -o- + ster(ol) + -one

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Collins
World English Dictionary
aldosterone (ælˈdɒstəˌrəʊn)
 
n
the principal mineralocorticoid secreted by the adrenal cortex. A synthesized form is used in the treatment of Addison's disease. Formula: C21H27O5
 
[C20: from ald(ehyde) + -o- + ster(ol) + -one]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

aldosterone al·dos·ter·one (āl-dŏs'tə-rōn')
n.
A steroid hormone secreted by the adrenal cortex that regulates the salt and water balance in the body.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
aldosterone   (āl-dŏs'tə-rōn')  Pronunciation Key 
A steroid hormone secreted by the adrenal cortex that regulates salt and water balance in the body. Chemical formula: C21H28O5.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

aldosterone

a steroid hormone secreted by the adrenal gland. It serves as the principal regulator of the salt and water balance of the body (a mineralocorticoid) and has a small effect on the metabolism of fats, carbohydrates, and proteins.

Learn more about aldosterone with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
People with primary hyperaldosteronism have a problem with the adrenal gland that causes it to release too much aldosterone.
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