Definition of embolism in English:



  • 1Medicine
    Obstruction of an artery, typically by a clot of blood or an air bubble.

    • ‘A computed tomographic scan demonstrated a pulmonary embolism, and anticoagulation therapy was initiated.’
    • ‘Even so, thrombolytic therapy of pulmonary embolism does not dissolve the clot completely as it does with acute coronary thrombosis, and increases the risk of bleeding.’
    • ‘For example, if the person has an air embolism in the arteries carrying blood to the brain, it may cause seizures.’
    • ‘Spiral computed tomography showed a pulmonary embolism in the left lower lobe.’
    • ‘Serious obstructions, such as a pulmonary embolism, need emergency medical treatment.’
    lump, clump, mass, curdling
    View synonyms
  • 2The periodic intercalation of days or a month to correct the accumulating discrepancy between the calendar year and the solar year, as in a leap year.


Mid 19th century: via late Latin from Greek embolismos, from emballein ‘insert’.