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

Four years ago, Turner overcame a greater health crisis after an aortic aneurysm was discovered. —Cam Inman, Mercury News, 10 June 2026

Patients come in with what could be blocked carotid arteries, peripheral artery disease, abdominal aortic aneurysms, or infected sores that could seed sepsis, the overwhelming full-body infection. —Elizabeth Cooney, STAT, 8 June 2026

The company also flags baseline cardiac disease, abnormal ECG, arrhythmia, prior cervical vagotomy, abnormal cervical anatomy, brain tumor or aneurysm history, head trauma, syncope, seizures and nickel allergy as unevaluated risks. —Samantha Agate, Sacbee.com, 3 June 2026

The actress recently opened up about being diagnosed with a possible brain aneurysm before filming a major scene. —Hannah Malach, InStyle, 3 June 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