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Definition of aneurysm

aneurysm

/ˈæn.jə.ɹɪz.əm/
an · eu · rysm
Plural:aneurysms
•
Adjective:aneurysmal
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aneurysm Lexical Profile

aneurysm Game Scores & Validity

• noun

1

An abnormal, localized bulge or ballooning in the wall of a blood vessel, typically an artery, caused by weakness in the vessel wall.

Example

"The doctors discovered a small cerebral aneurysm during the routine brain scan and recommended surgical repair."

Word Nuance & Usage

Also spelled 'aneurism', though 'aneurysm' (reflecting its Greek root 'eurys') is the standard spelling in medical and contemporary general usage.

• Nearby Words

anesthetist
anesthetize
aneto
aneurysm
anew
angel
angel falls

Word Origin & Etymology

Borrowed in the mid-16th century from Late Latin 'aneurysma', from Ancient Greek 'aneurysma' ('a dilation'), derived from 'ana-' ('up, throughout') and 'eurys' ('wide').

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Aneurysm. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/aneurysm
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