aneurysm

noun

an·​eu·​rysm ˈan-yə-ˌri-zəm How to pronounce aneurysm (audio)
variants or less commonly aneurism
: an abnormal blood-filled bulge of a blood vessel and especially an artery resulting from weakening (as from disease) of the vessel wall
aneurysmal adjective

Examples of aneurysm in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Escobedo, then 40, had suffered a brain aneurysm in 1994, with ensuing seizures. Neal Rubin, Freep.com, 20 Sep. 2025 His wife of 48 years, Maureen, died in 2017 of a brain aneurysm at age 70. Mike Barnes, HollywoodReporter, 16 Sep. 2025 The areas are kidney failure, knee replacement, hip fracture, heart attack, congestive heart failure, hip replacement, pneumonia and abdominal aortic aneurysm repair. Melinda Moore, Chicago Tribune, 2 Sep. 2025 The researchers set out to examine whether people with higher TMAO levels were more likely to have an aneurysm, whether those levels predicted faster growth and progression, and whether TMAO could be used as a biomarker or even a therapeutic target. New Atlas, 30 Aug. 2025 See All Example Sentences for aneurysm

Word History

Etymology

Greek aneurysma, from aneurynein to dilate, from ana- + eurynein to stretch, from eurys wide — more at eury-

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of aneurysm was in the 15th century

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Cite this Entry

“Aneurysm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aneurysm. Accessed 24 Sep. 2025.

Medical Definition

aneurysm

noun
an·​eu·​rysm
variants also aneurism
: an abnormal blood-filled dilatation of a blood vessel and especially an artery resulting from disease of the vessel wall
aneurysmal adjective
also aneurismal
aneurysmally adverb

More from Merriam-Webster on aneurysm

Last Updated: - Updated example sentences
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