aneurysm
or an·eu·rism
[ an-yuh-riz-uhm ]
/ ˈæn yəˌrɪz əm /
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noun Pathology.
a permanent cardiac or arterial dilatation usually caused by weakening of the vessel wall.
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Origin of aneurysm
OTHER WORDS FROM aneurysm
an·eu·rys·mal, an·eu·ris·mal, adjectivean·eu·rys·mal·ly, an·eu·ris·mal·ly, adverbDictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use aneurysm in a sentence
British Dictionary definitions for aneurysm
aneurysm
aneurism
/ (ˈænjəˌrɪzəm) /
noun
a sac formed by abnormal dilation of the weakened wall of a blood vessel
Derived forms of aneurysm
aneurysmal, aneurismal, aneurysmatic or aneurismatic, adjectiveaneurysmally, aneurismally, aneurysmatically or aneurismatically, adverbWord 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
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Scientific definitions for aneurysm
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.
The American Heritage® Science Dictionary
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