stenosis

noun

ste·​no·​sis stə-ˈnō-səs How to pronounce stenosis (audio)
plural stenoses stə-ˈnō-ˌsēz How to pronounce stenosis (audio)
: a narrowing or constriction of the diameter of a bodily passage or orifice
stenotic adjective

Examples of stenosis in a Sentence

Recent Examples on the Web
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Last summer, DeLauro went for surgery to treat spinal stenosis while Congress was on its month-long August recess. Lisa Hagen, Hartford Courant, 13 Jan. 2026 In 2024, she was diagnosed with severe aortic stenosis, a disease in which the aortic valve narrows and restricts blood flow. Aurora Beacon-News, Chicago Tribune, 9 Jan. 2026 Spinal stenosis limits her mobility, necessitating the walkers and wheelchairs and considerable help from her husband, Dennis, who serves as her primary caregiver. Paula Span, Miami Herald, 15 Dec. 2025 Sawyer, a former police officer, suffers from degenerative spinal stenosis. Ciara McCarthy, Fort Worth Star-Telegram, 21 Nov. 2025 See All Example Sentences for stenosis

Word History

Etymology

New Latin, from Greek stenōsis act of narrowing, from stenoun to narrow, from stenos narrow

First Known Use

circa 1860, in the meaning defined above

Time Traveler
The first known use of stenosis was circa 1860

Browse Nearby Words

Cite this Entry

“Stenosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stenosis. Accessed 15 Jan. 2026.

Medical Definition

stenosis

noun
ste·​no·​sis stə-ˈnō-səs How to pronounce stenosis (audio)
plural stenoses -ˌsēz How to pronounce stenosis (audio)
: a narrowing or constriction of the diameter of a bodily passage or orifice
esophageal stenosis
see aortic stenosis, mitral stenosis, pulmonary stenosis, spinal stenosis, subaortic stenosis

More from Merriam-Webster on stenosis

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