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[sti-noh-sis] /stɪˈnoʊ sɪs/
noun, Pathology
a narrowing or stricture of a passage or vessel.
Origin of stenosis
1855-60; < New Latin < Greek sténōsis. See steno-, -osis
Related forms
[sti-not-ik] /stɪˈnɒt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for stenosis
  • Stroke secondary to carotid stenosis occurs when blood flow to the brain is blocked.
  • Mitral stenosis is a heart valve disorder that involves the mitral valve.
  • Pulmonary valve stenosis is a heart valve disorder that involves the pulmonary valve.
  • Renal artery stenosis is a narrowing or blockage of the artery that supplies blood to the kidney.
  • Patients with spinal stenosis are not usually able to walk for long periods of time.
  • Surgical versus nonsurgical therapy for lumbar spinal stenosis.
  • Significant renal artery stenosis may be a cause of high blood pressure and kidney problems.
  • The health care provider must first rule out physical causes, such as hiatal hernia and pyloric stenosis.
British Dictionary definitions for stenosis


noun (pl) -ses (-siːz)
(pathol) an abnormal narrowing of a bodily canal or passage
Derived Forms
stenotic (stɪˈnɒtɪk) adjective
Word Origin
C19: via New Latin from Greek stenōsis, from stenoun to constrict, from stenos narrow
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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Word Origin and History for stenosis

1872, Modern Latin, from Greek stenosis "narrowing," from stenoun "to narrow," from stenos "narrow."

Online Etymology Dictionary, © 2010 Douglas Harper
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stenosis in Medicine

stenosis ste·no·sis (stə-nō'sĭs)
n. pl. ste·no·ses (-sēz)
A constriction or narrowing of a duct or passage; a stricture.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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