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

His blood pressure will be well monitored for the rest of his life to try to prevent aneurysms and dissections. —Nicole Villalpando, Austin American Statesman, 30 July 2025

About half of people survive a ruptured brain aneurysm, often with disability.1 Brain Aneurysm Statistics Brain aneurysms occur in about 1-2% of people. —Ruth Jessen Hickman, Health, 23 July 2025

In another lawsuit filed in June, Sarah Martin, 56, alleged that Orange County Global negligently delayed diagnosing and treating her brain aneurysm. —Tony Saavedra, Oc Register, 17 July 2025

One day, we are devastated to learn that a colleague of ours has died of a brain aneurysm. —Lizz Schumer, People.com, 2 July 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