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 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

Boston Scientific has agreed to buy the thrombectomy company, which makes medical devices to treat vascular conditions like stroke and aneurysms, for roughly $15 billion in a cash-and-stock deal.

From Barron's

Penumbra’s portfolio includes devices to treat conditions like pulmonary embolism, stroke, deep vein aneurysms, and heart attack.

From Barron's

Véra has a disability—she cannot speak, likely due to a ruptured aneurysm she suffered at the age of 6.

From The Wall Street Journal

Kardashian reacted with visible shock, saying the results “explain a lot” about her stress levels as she juggles a sprawling business empire, law studies, an aneurysm recovery, and a highly public personal life.

From Salon