aneurysm

or an·eu·rism

[ an-yuh-riz-uh m ]

/ ˈæn yəˌrɪz əm /

noun Pathology.

a permanent cardiac or arterial dilatation usually caused by weakening of the vessel wall.

Nearby words

aneuch, aneuploid, aneuploidy, aneuria, aneurin, aneurysm, aneurysm of charcot, aneurysmal bone cyst, aneurysmectomy, aneurysmogram, aneurysmoplasty

Origin of aneurysm

1650–60; < Greek aneúrysma dilation, equivalent to aneurys- (variant stem of aneurýnein to dilate; see an-³, eury-) + -ma noun suffix

Related forms

an·eu·rys·mal, an·eu·ris·mal, adjectivean·eu·rys·mal·ly, an·eu·ris·mal·ly, adverb

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aneurism

However, he sought an explanation of Benedetta's death, and hesitatingly ascribed it to aneurism, or possibly embolism.
The Three Cities Trilogy, Complete|Emile Zola
The proofs we possess as to the frequency of abdominal, especially mesenteric, aneurism from this source are overwhelming.
Parasites|T. Spencer Cobbold
Fourier had already experienced, in Egypt and Grenoble, some attacks of aneurism of the heart.
Biographies of Distinguished Scientific Men|Francois Arago
Dempster died suddenly this morning of aneurism of the heart, leaving no confession of any kind.'
Sheilah McLeod|Guy Boothby

A pulsating tumor of the right hypochondrium, accompanied by jaundice, may be an aneurism of the hepatic artery.
A System of Practical Medicine By American Authors, Vol. II|Various

British Dictionary definitions for aneurism

aneurysm

aneurism

/ (ˈænjəˌrɪzəm) /

noun

a sac formed by abnormal dilation of the weakened wall of a blood vessel

Derived Forms

aneurysmal, aneurismal, aneurysmatic or aneurismatic, adjectiveaneurysmally, aneurismally, aneurysmatically or aneurismatically, adverb

Word Origin for aneurysm

C15: from Greek aneurusma, from aneurunein to dilate, from eurunein to widen

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for aneurism

aneurysm

n.

A localized, blood-filled dilation of a blood vessel caused by disease or weakening of the vessel wall.

Related forms

an′eu•rys′mal (-məl) null adj.

Science definitions for aneurism

aneurysm

[ ăn′yə-rĭz′əm ]

A localized, blood-filled dilation of a blood vessel or cardiac chamber caused by disease, such as arteriosclerosis, or weakening of the vessel or chamber wall. A ruptured aneurysm results in hemorrhage and is often fatal.