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

Common causes include an aneurysm, high blood pressure, head trauma or arteriovenous malformation. — Minyvonne Burke, NBC news, 5 Oct. 2026

Bringing Home the Browns was started to share Heather’s journey and updates after an aneurysm caused seizures, which eventually led to Heather being placed in a coma while pregnant with her and Sean’s first baby. — Angel Saunders, PEOPLE, 1 Oct. 2026

That same year, a rider on Magic Mountain’s Goliath coaster died of a brain aneurysm. — Fedor Zarkhin, Los Angeles Times, 29 Sep. 2026

For individuals diagnosed with an unruptured aneurysm, Dabus noted that keeping blood pressure under control and avoiding smoking are two of the most critical steps. — Lauren Pastrana, CBS News, 14 Sep. 2026

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

• threesome

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