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angiotensin

[ an-jee-oh-ten-sin ]
/ ˌæn dʒi oʊˈtɛn sɪn /
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noun Biochemistry.
any of three oligopeptides occurring in plasma, an inactive form (angiotensin I ) and two varieties (angiotensin II and angiotensin III ) that elevate blood pressure and stimulate the adrenal cortex to secrete aldosterone.
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Origin of angiotensin

1960–65; probably blend of angiotonin + hypertensin, earlier names for the substances
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

British Dictionary definitions for angiotensin

angiotensin
/ (ˌændʒɪəˈtɛnsɪn) /

noun
a peptide of physiological importance that is capable of causing constriction of blood vessels, which raises blood pressure

Word Origin for angiotensin

from angio- + tense 1 + -in
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

Scientific definitions for angiotensin

angiotensin
[ ăn′jē-ō-tĕnsĭn ]

Any of three polypeptide hormones that function in the body in controlling arterial pressure. The most important is known as angiotensin II, a powerful vasoconstrictor that stimulates steroid production by the adrenal glands, reduces fluid loss from the kidneys, and also functions as a neurotransmitter. Angiotensin II is formed from inactive angiotensin I by the action of angiotensin-converting enzyme (or ACE). See also ACE inhibitor renin.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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