Aneurysm (noun)

  1. A localized, blood-filled dilatation of a blood vessel caused by a weakening of the vessel wall, usually aortic or cerebral.
  2. A pathological dilatation of a blood vessel caused by disease or weakness in the wall of the vessel.


From the greek ἀνεύρυσμα, aneurusma, meaning "dilation" or "rupture".


  1. The patient was diagnosed with an aneurysm in the aorta and had to undergo surgery.
  2. Aneurysms can be caused by a number of factors, including high blood pressure and smoking.
  3. The doctor was able to detect the aneurysm on the patient's brain by using a CT scan.
  4. The patient's family was informed that an aneurysm could be life-threatening if left untreated.
  5. The patient was discharged from the hospital after the aneurysm was successfully treated.
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