aneurysm
Pronunciation: an′yū-rizm
Definition: Circumscribed dilation of an artery or a cardiac chamber, in direct communication with the lumen, usually resulting from an acquired or congenital weakness of the wall of the artery or chamber.
[G. aneurysma (-mat-), a dilation, fr. eurys, wide]
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Examples: glitazone, GI cocktail, etc.
