Share this entry
aneurysm Line breaks: an|eur¦ysm
Pronunciation: /ˈanjʊrɪz(ə)m/
(also aneurism)

Definition of aneurysm in English:


An excessive localized swelling of the wall of an artery.
Example sentences
  • An aneurysm is a swelling in part of an artery caused by damage to, or weakness of, a blood vessel wall.
  • In patients without subarachnoid hemorrhage from a separate aneurysm, larger aneurysms also were more likely to rupture.
  • For instance, if the aneurysm involves the arteries to the kidneys then surgeons need this information if they plan to operate.


Pronunciation: /anjʊˈrɪzm(ə)l/
Example sentences
  • Subarachnoid hemorrhage associated with aneurysmal rupture is a potentially lethal event with a mortality rate as high as 50 percent.
  • However, the vascular wall was intact without any aneurysmal dilation or communication with the hemorrhagic cystic lesion.
  • The second patient described herein had aneurysmal changes with advanced degenerative disease.


Late Middle English: from Greek aneurusma 'dilatation', from aneurunein 'widen out'.

Definition of aneurysm in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources