aneurysm
UK[ˈænjərɪzəm]US[ˈænjəˌrɪzəm]
n
An abnormal, blood-filled swelling of an artery or vein, resulting from a weakening of the vessel wall.
Morpheme Breakdown
an
eurysm
an
prefix
eurysm
root
Etymology
The word 'aneurysm' originates from the Greek 'aneurysma', meaning "a widening." This term is derived from the verb 'aneurynein', which combines 'ana-' (up) and 'eurys' (wide), literally translating to "to widen up." The medical condition is named for its defining characteristic: a pathological dilation or widening of a blood vessel. This etymological journey clearly illustrates how the ancient descriptive term for a physical broadening was adopted into medical Latin and subsequently into English to name this specific vascular pathology.
Analysis
Structure: an (prefix) + eurysm (root)
- an-: A Greek prefix meaning "up" or "again," here serving as an intensive prefix.
- eurysm: From the Greek root 'eurys', meaning "wide" or "broad."
Examples
The patient was rushed to surgery to repair a ruptured cerebral aneurysm.
A routine scan revealed a small, asymptomatic aortic aneurysm.
High blood pressure is a significant risk factor for developing an aneurysm.