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Definition of aneurysm noun from the Oxford Advanced Learner's Dictionary

aneurysm

noun

/ˈænjərɪzəm/

/ˈænjərɪzəm/

(medical)

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an area of extreme swelling on the wall of an artery
Word Originlate Middle English: from Greek aneurusma ‘dilatation’, from aneurunein ‘widen out’.

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See aneurysm in the Oxford Advanced American Dictionary

Check pronunciation: aneurysm

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