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.
The elder Biden also had a brain aneurysm in the late 1980s that almost killed him. Chad De Guzman, Time, 19 May 2025 In some cases, an aneurysm may rupture and lead to bleeding in the brain.3 4. Angelica Bottaro, Verywell Health, 14 May 2025 Last year, the Wichita, Kansas native began a GoFundMe for his mother, who suffered a brain aneurysm, according to the Springfield News-Leader. Anna Lazarus Caplan, People.com, 23 Apr. 2025 Zhao and her colleagues think the untethered, robotic version of the milli-spinner will be able to swim directly inside blood vessels to treat blood clots, brain aneurysms, kidney stones, and other conditions. Ani Freedman, Fortune, 27 June 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 Jul. 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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