an·​eu·​rysm | \ ˈan-yə-ˌri-zəm How to pronounce aneurysm (audio) \
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

Keep scrolling for more

Other Words from aneurysm

aneurysmal \ ˌan-​yə-​ˈriz-​məl How to pronounce aneurysmal (audio) \ adjective

Examples of aneurysm in a Sentence

Recent Examples on the Web Puppeteer Tom Veiga suffered a stroke caused by an aneurysm at his home in Rio de Janeiro, at age 47. David Biller, Star Tribune, "In Brazil, a parrot puppeteer's death stirs the nation," 2 Nov. 2020 The Trump camp has used Biden's platform to belittle him as a liberal puppet, an extension of its attacks on the two-time aneurysm survivor's age and mental acuity. Naomi Lim, Washington Examiner, "Biden steadies himself for historic shot at the presidency," 20 Oct. 2020 One 78-year-old woman who required immediate attention for an aneurysm died after being sent to another city, reports Bild, a German newspaper. Robert Hackett, Fortune, "Ransomware attack on a hospital may be first ever to cause a death," 18 Sep. 2020 According to a tweet by Redeye Radio host Gary McNamara, McKibbon suffered a brain aneurysm and was on life support until the late hours of Oct. 30. Michele Amabile Angermiller,, "‘American Idol’ alum Nikki McKibbin dies at 42," 1 Nov. 2020 Gregory passed away from a brain aneurysm at the age of 19. Kathleen Christiansen,, "‘Euphoria’ actor Jacob Elordi talks heartbreaking and heartwarming ‘2 Hearts’," 15 Oct. 2020 Her husband died of a sudden aortic aneurysm in 1996. Mattie Kahn, Glamour, "The Guardians of Elmhurst," 13 Oct. 2020 An unruptured aneurysm quietly bulged in my aorta, the main artery of the body. Johnny Diaz, New York Times, "‘I Had Heart Surgery in the Middle of a Coronavirus Hot Spot’," 22 Sep. 2020 Her father, too, who built the addition and, when Broom was just 6 months old, died in its bathroom of a brain aneurysm. Jenna Ross, Star Tribune, "Author Sarah M. Broom made childhood home into something much bigger in 'The Yellow House'," 2 Oct. 2020

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.

See More

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-

Keep scrolling for more

Learn More about aneurysm

Time Traveler for aneurysm

Time Traveler

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

See more words from the same century

Statistics for aneurysm

Last Updated

20 Nov 2020

Cite this Entry

“Aneurysm.” Dictionary, Merriam-Webster, Accessed 30 Nov. 2020.

Keep scrolling for more

More Definitions for aneurysm


variants: also aneurism \ ˈan-​yə-​ˌriz-​əm How to pronounce aneurism (audio) \

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 How to pronounce aneurismal (audio) \ adjective
aneurysmally \ -​ē How to pronounce aneurysmally (audio) \ adverb

Keep scrolling for more

More from Merriam-Webster on aneurysm

Nglish: Translation of aneurysm for Spanish Speakers

Britannica English: Translation of aneurysm for Arabic Speakers Encyclopedia article about aneurysm

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).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!