an·eu·rysm also an·eu·rism ( n y -r z m)n. A localized, pathological, blood-filled dilatation of a blood vessel caused by a disease or weakening of the vessel's wall. [Middle English aneurisme, ultimately from Greek aneurusma, from aneurein, to dilate : ana-, throughout; see ana- + eurus, wide.] an eu·rysmal (-ml) adj. |
aneurysm, aneurism [ˈænjəˌrɪzəm]
n
(Medicine) a sac formed by abnormal dilation of the weakened wall of a blood vessel
[from Greek aneurusma, from aneurunein to dilate, from eurunein to widen]
aneurysmal , aneurismal, aneurysmatic, aneurismatic adj
aneurysmally , aneurismally, aneurysmatically, aneurismatically adv
| aneurysm (ny-rzm) 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. |
aneurism, aneurysm
a disease of the artery wall that causes a localized dilatation of the artery and a pulsating tumor.
See also: Blood and Blood Vessels
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  aneurysm - a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wallcardiovascular disease - a disease of the heart or blood vessels aortic aneurysm - an aneurysm of the aorta cerebral aneurysm - an aneurysm of the carotid artery intracranial aneurysm - an aneurysm of a cranial artery ventricular aneurysm - a localized dilation or protrusion on the wall of the left ventricle of the heart (occurring after a myocardial infarction) |
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