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1. (n.) aneurysm
a permanent cardiac or arterial dilatation usu. caused by weakening of the vessel wall.
Etymology: (1650–60; < Gk aneúrysma dilation, der. (with -(s)ma n. suffix of result) of aneurýnein to dilate (see an -3, eury -))
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| Definition of 'aneurysm' |
Princeton's WordNet |
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1. (noun) aneurysm, aneurism
a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wall
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| Definition of 'aneurysm' |
U.S. National Library of Medicine |
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1. aneurysm
Pathological outpouching or sac-like dilatation in the wall of any blood vessel (ARTERIES or VEINS) or the heart (HEART ANEURYSM). It indicates a thin and weakened area in the wall which may later rupture. Aneurysms are classified by location, etiology, or other characteristics.
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Definitions of aneurysm 
