Aneurysm

Alternative forms

 * aneurism

Etymology
From ἀνεύρυσμα:, from ἀνά: + εὐρύς:.

Noun

 * 1)  An abnormal blood-filled swelling of an artery or vein, resulting from a localized weakness in the wall of the vessel.

Derived terms

 * aneurysmatic
 * aneurysmal