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
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Ultimately, John went and lay down in a guest room for half of the party, drove himself home and died within the next 12 hours from a brain aneurysm. Rebecca Edmisten, Mercury News, 22 Apr. 2026 However, the medical examiner found no evidence of a ruptured splenic artery aneurysm. Cara Tabachnick, CBS News, 14 Apr. 2026 After the surgery, the doctor said that the patient died of a ruptured splenic artery aneurysm, the filing states. Matt Lavietes, NBC news, 14 Apr. 2026 An abdominal aortic aneurysm occurs when part of the lower wall of the body’s main artery weakens, creating a bulging, enlarged area in the blood vessel. Brianna Abbott, STAT, 7 Apr. 2026 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.grautoblog.com/dictionary/aneurysm. Accessed 25 Apr. 2026.

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

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