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

In her essay, Clarke outlines her emotional journey with the two brain aneurysms, which happened at such busy times in her life and career. Christopher Rosa, Allure, "Lena Headey Wrote the Kindest Message to Emilia Clarke About Her Brain Aneurysms," 23 Mar. 2019 Chicago White Sox pitcher Danny Farquhar is speaking out for the first time since he was released from the hospital after experiencing a ruptured brain aneurysm during a game on April 20. Jason Duaine Hahn,, "Danny Farquhar, MLB Pitcher Who Suffered Aneurysm During Game, Says 'Doctors Call Me a Miracle'," 1 June 2018 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, The Seattle Times, "Laughter, optimism surround ex-Mariner Danny Farquhar after brain aneurysm," 17 July 2018 The aneurysm wasn’t large enough to warrant repair yet. Trihealth Dailyhealthwire,, "Gut Check: TriHealth vascular surgeons lead the way with minimally invasive abdominal aortic aneurysm surgery," 19 Feb. 2018 But alcohol consumption, even at that allegedly moderate level, is also associated with a suite of cardiovascular problems, including stroke, aortic aneurysm, fatal hypertensive disease and heart failure. Joel Achenbach, Washington Post, "‘Moderate’ drinking guidelines are too loose, study says," 12 Apr. 2018 That's a significant and pleasantly surprising development given that Farquhar, 31, was hospitalized in critical condition after the hemorrhage that resulted from a ruptured aneurysm on April 20. Gabe Lacques, USA TODAY, "Danny Farquhar released from hospital; doctor expects White Sox reliever will pitch again," 7 May 2018 He was diagnosed with a hemorrhage caused by a ruptured aneurysm, needed emergency brain surgery and spent 2 ½ weeks in intensive care. Colleen Kane,, "White Sox's Danny Farquhar posts video of himself throwing during recovery from brain hemorrhage," 20 June 2018 The teenager, Alyssa Gilderhus, suffered a ruptured brain aneurysm on Christmas morning in 2016, and needed emergency surgery but eventually grew tired of the Mayo Clinic’s rehab facilities. Brian Flood, Fox News, "CNN, Mayo Clinic at war over report on teen who 'broke out of' esteemed hospital," 15 Aug. 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.

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

Statistics for aneurysm

Last Updated

7 Apr 2019

Look-up Popularity

Time Traveler for aneurysm

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

See more words from the same century

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

Rhyming Dictionary: Words that rhyme with aneurysm

Spanish Central: Translation of 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).


to make a payment or contribution

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time traveler quiz which word came first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!


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!