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angiotensin

[an-jee-oh-ten-sin] /ˌæn dʒi oʊˈtɛn sɪn/
noun, Biochemistry
1.
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.
Origin
1960-1965
1960-65; probably angio(tonin) + (hyper)tensin, earlier names for the substances
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for angiotensin-iii

angiotensin

/ˌændʒɪəˈtɛnsɪn/
noun
1.
a peptide of physiological importance that is capable of causing constriction of blood vessels, which raises blood pressure
Word Origin
from angio- + tense1 + -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
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angiotensin-iii in Medicine

angiotensin an·gi·o·ten·sin (ān'jē-ō-těn'sĭn)
n.
Any of a group of peptides with vasoconstrictive activity that function physiologically in controlling arterial pressure.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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angiotensin-iii in Science
angiotensin
  (ān'jē-ō-těn'sĭn)   
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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