Definition of embolus noun from the Oxford Advanced American Dictionary

 

embolus

 noun
noun
NAmE//ˈɛmbələs//
 
(pl. emboli
NAmE//ˈɛmbəˌlaɪ//
 
, NAmE//ˈɛmbəli//
 
)
(medical)
 
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a blood clot, air bubble, or small object that causes an embolism
See the Oxford Advanced Learner's Dictionary entry: embolus