Aneurysm Definition
anyo͝orizəm, anyərizəm
aneurysms
noun
aneurysms
A sac formed by local enlargement of the weakened wall of an artery, a vein, or the heart, caused by disease or injury.
Webster's New World
An abnormal, blood-filled sac formed by dilation of the wall of a blood vessel or heart ventricle, most commonly the abdominal aorta and intracranial arteries, resulting from disease or trauma to the wall, as in atherosclerosis.
American Heritage Medicine
Synonyms:
- aneurism
Other Word Forms of Aneurysm
Noun
Singular:
aneurysm
Plural:
aneurysmsOrigin of Aneurysm
-
Middle English aneurisme ultimately from Greek aneurusma from aneurein to dilate ana- throughout ana– eurus wide
From American Heritage Dictionary of the English Language, 5th Edition
From Ancient Greek ἀνεύρυσμα (aneurysma, “a widening, an opening”), from ἀνά (ana, “up”) + εὐρύς (eurys, “wide”).
From Wiktionary
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