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

aneurysmal

ˌan-yə-ˈriz-məl 

adjective

Examples of aneurysm in a Sentence

Recent Examples on the Web

The researchers set out to examine whether people with higher TMAO levels were more likely to have an aneurysm, whether those levels predicted faster growth and progression, and whether TMAO could be used as a biomarker or even a therapeutic target. —New Atlas, 30 Aug. 2025

As the announcer remarks upon how the normally meticulous and unflappable Haines is playing with an uncommon aggression, Hitchcock’s urgent camerawork and rapid cuts show Guy, pressed for time and needing to make a hasty exit, playing at a pace that would give Rafael Nadal an aneurysm. —Joe Reid, Vulture, 29 Aug. 2025

Seubert, 66, died of complications from a brain aneurysm on July 30 at his home in Lakeview, said his sister, Cara Teuber. —Bob Goldsborough, Chicago Tribune, 25 Aug. 2025

Brain Bleed Protection and Cognitive Benefits The final study, conducted by the University of Texas Medical Branch in Galveston, extended the investigation to brain hemorrhages—both spontaneous bleeds and those caused by aneurysms. —Lucy Notarantonio, MSNBC Newsweek, 4 Aug. 2025

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

Rhymes for aneurysm

• alyssum
• cataclysm

Medical Definition

aneurysm

noun

an·​eu·​rysm

variants also aneurism

ˈan-yə-ˌriz-əm 

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

aneurysmal adjective

also aneurismal

ˌan-yə-ˈriz-məl 

aneurysmally

-ē 

adverb