an·eu·rysm | \ˈan-yə-ˌri-zəm \
variants: or less commonly aneurism

Definition of aneurysm 

: an abnormal blood-filled bulge of a blood vessel and especially an artery resulting from weakening (as from disease) of the vessel wall

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Other Words from aneurysm

aneurysmal \ˌan-yə-ˈriz-məl \ adjective

Examples of aneurysm in a Sentence

Recent Examples on the Web

Numbers suggest ruptured brain aneurysms prove fatal in about 40 percent of cases, and 66 percent of survivors demonstrate some permanent neurological deficit, according to the Brain Aneurysm Foundation. David Haugh,, "Operating on Danny Farquhar's brain didn't change what was in White Sox pitcher's heart," 12 July 2018 The companies uses medical images of the organ that is to be operated on, such as a heart with a structural defect or a brain with an aneurysm, to design the replica. Margeaux Sippell,, "A 3-D printing factory will make replica human organs in Boston," 7 June 2018 Farquhar is out for the 2018 season after suffering a brain hemorrhage from an aneurysm in the Sox dugout on April 20, a life-threatening injury that put his baseball career on the back-burner. Paul Sullivan,, "Danny Farquhar's recovery motivates White Sox teammates," 31 May 2018 It's been an amazing recovery for the 31-year-old, who was left to fight for his life when an aneurysm in his brain ruptured during a game on April 20. Tom Schad, USA TODAY, "Danny Farquhar thanks doctors, says he 'can't wait' to pitch again after ruptured aneurysm," 11 May 2018 The document alleges that Paxton consulted Khoynezhad, Cedars-Sinai and other defendants in connection with cardiac conditions that included bicuspid aortic valve and aortic aneurysm. Robert Philpot, star-telegram, "Bill Paxton's family files suit against hospital, surgeon | Fort Worth Star-Telegram," 12 Feb. 2018 Doctors near his small town sent him to Puerto Rico's main hospital for emergency surgery for an aortic aneurysm. Danica Coto, Fox News, "Puerto Rico issues new data on Hurricane Maria deaths," 13 June 2018 SportsPulse: Chicago White Sox pitcher Danny Farquhar suffered a brain aneurysm on April 20. Patrick Brennan,, "Cincinnati Reds notes: Billy Hamilton will continue to bat ninth, Jim Riggleman says," 23 Apr. 2018 Her father, Allan, was a pilot who died of a brain aneurysm before she was born. Neil Genzlinger,, "Allyn Ann McLerie, 91, veteran of Broadway, TV, and film," 2 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aneurysm.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aneurysm

15th century, in the meaning defined above

History and Etymology for aneurysm

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

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Statistics for aneurysm

Last Updated

20 Oct 2018

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Time Traveler for aneurysm

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

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More Definitions for aneurysm


variants: also aneurism \ˈan-yə-ˌriz-əm \

Medical Definition of aneurysm 

: an abnormal blood-filled dilatation of a blood vessel and especially an artery resulting from disease of the vessel wall

Other Words from aneurysm

aneurysmal also aneurismal \ˌan-yə-ˈriz-məl \ adjective
aneurysmally \ \ adverb

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Comments on aneurysm

What made you want to look up aneurysm? Please tell us where you read or heard it (including the quote, if possible).


to reject or criticize sharply

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