aneurysm

American  

[an-yuh-riz-uhm] / ˈæn yəˌrɪz əm /

Or aneurism

noun

Pathology.

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

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aneurysm British  

/ ˈænjəˌrɪzəm /

noun

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

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aneurysm Scientific  

/ ăn′yə-rĭz′əm /

1. 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.

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Other Word Forms

• aneurismal adjective
• aneurismally adverb
• aneurysmal adjective
• aneurysmally adverb

Etymology

Origin of aneurysm

First recorded in 1650–60; from Greek aneúrysma “dilation,” equivalent to aneurys- (variant stem of aneurýnein “to dilate,” from an- an- ³ + eurýnein “to widen, broaden”; eury- ) + -ma, noun suffix

Example Sentences

The condition is caused by the buildup of plaque — meaning fats, cholesterol and other substances — in and on the artery walls, which can lead to events such as heart attacks, strokes and aneurysms.

From Los Angeles Times

Plus, how an aneurysm led to a love of romantasy and a look at the decline of male therapists.

From The Wall Street Journal

After an aneurysm, your former life, free from the threat of death, of brain damage, of another aneurysm, is gone and buried.

From The Wall Street Journal

"I pawned my mum's rings, he just took everything I had and I was diagnosed with an aneurysm and Bell's palsy."

From BBC

The registered nurse, who is on maternity leave after having her son Albie, was diagnosed with a brain aneurysm - a swollen blood vessel - after suffering extreme headaches.

From BBC