1. a blood clot, air bubble, or small object that causes an embolism
   Word Originmid 17th cent. (denoting something inserted or moving within another, specifically the plunger of a syringe): from Latin, literally ‘piston’, from Greek embolos ‘peg, stopper’. The current sense dates from the mid 19th cent.

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[TahlilGaran] English Dictionary ▲