aneurysm or an·eu·rism [ an-y uh-riz- uhm ] SHOW IPA / ˈæn yəˌrɪz əm / PHONETIC RESPELLING noun Pathology. a permanent cardiac or arterial dilatation usually caused by weakening of the vessel wall. QUIZZES QUIZ YOURSELF ON THE MANY TYPES OF NOUNS
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Origin of aneurysm
dilation, equivalent to
(variant stem of
to dilate; see
OTHER WORDS FROM aneurysm an·eu·rys·mal, an·eu·ris·mal, adjective an·eu·rys·mal·ly, an·eu·ris·mal·ly, adverb
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for aneurysm
Besides, sneezing sometimes causes the rupture of an aneurism; and so he gave up the snuff-box altogether.
This was a case of popliteal aneurism, operations for which had heretofore proved pretty uniformly fatal.
An experienced physician has but to feel the pulse once, and he knows that there is aneurism which will kill some time or other.
These remind us of our aneurism needles, and it is interesting to note that Galen (ut supra) speaks of an ‘eyed hook’.
Doubtless mental anguish had reacted on the physical frame, and some disease, perhaps an aneurism, was undermining Julie's life.
British Dictionary definitions for aneurysm noun a sac formed by abnormal dilation of the weakened wall of a blood vessel Derived forms of aneurysm aneurysmal, aneurismal, aneurysmatic or aneurismatic, adjective aneurysmally, 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 aneurysm n. A localized, blood-filled dilation of a blood vessel caused by disease or weakening of the vessel wall. Other words from aneurysm an′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 aneurysm 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.