aneurysm
noun
an·eu·rysm
ˈan-yə-ˌri-zəm 
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
Examples of aneurysm in a Sentence
Recent Examples on the Web
Politico cited congressional colleagues who did not wish to be named as saying LaMalfa suffered an aneurysm — a bulging of an arterial wall — and then a heart attack.
—
Bay Area News Group, Mercury News, 6 Jan. 2026
At least one congressional colleague told Politico that LaMalfa suffered an aneurysm and then a heart attack during surgery.
—Darrell Smith, Sacbee.com, 6 Jan. 2026
Flow Space spoke with experts about what midlife women need to know about brain aneurysms.
—Helen Carefoot, Flow Space, 29 Dec. 2025
According to John Hopkins Medicine, an aneurysm is a weakened or bulging artery wall, and coiling is a procedure used to block blood flow to the aneurysm.
—Liza Esquibias, PEOPLE, 23 Dec. 2025
See All Example Sentences for aneurysm
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Bay Area News Group, Mercury News, 6 Jan. 2026
At least one congressional colleague told Politico that LaMalfa suffered an aneurysm and then a heart attack during surgery.
—Darrell Smith, Sacbee.com, 6 Jan. 2026
Flow Space spoke with experts about what midlife women need to know about brain aneurysms.
—Helen Carefoot, Flow Space, 29 Dec. 2025
According to John Hopkins Medicine, an aneurysm is a weakened or bulging artery wall, and coiling is a procedure used to block blood flow to the aneurysm.
—Liza Esquibias, PEOPLE, 23 Dec. 2025
See All Example Sentences for aneurysm
Cite this Entry
“Aneurysm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aneurysm. Accessed 7 Jan. 2026.
Copy CitationMedical 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
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