[ an-yuh-riz-uh m ]
/ ˈæn yəˌrɪz əm /
a permanent cardiac or arterial dilatation usually caused by weakening of the vessel wall.
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Origin of aneurysm
OTHER WORDS FROM aneurysman·eu·rys·mal, an·eu·ris·mal, adjectivean·eu·rys·mal·ly, an·eu·ris·mal·ly, adverb
Words nearby aneurysm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for aneurysmal
Sometimes the arterial vessels are so dilated as to impart to the tumour an aneurysmal pulsation and bruit.
Aneurysmal varix may occur in the neck as a result of stabs or bullet wounds.
British Dictionary definitions for aneurysmal
/ (ˈænjəˌrɪzəm) /
a sac formed by abnormal dilation of the weakened wall of a blood vessel
Derived forms of aneurysmaneurysmal, 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
Medical definitions for aneurysmal
A localized, blood-filled dilation of a blood vessel caused by disease or weakening of the vessel wall.
Other words from aneurysman′eu•rys′mal (-məl) null adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for aneurysmal
[ 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 Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.