A mass, such as an air bubble, a detached blood clot, or a foreign body, that travels through the bloodstream and lodges so as to obstruct or occlude a blood vessel.
[Latin, piston of a pump, from Greek embolos, stopper, plug, from emballein, to insert; see emblem.]
(Pathology) material, such as part of a blood clot or an air bubble, that is transported by the blood stream until it becomes lodged within a small vessel and impedes the circulation. Compare thrombus
[C17: via Latin from Greek embolos stopper, from emballein to insert, from ballein to throw; see emblem]
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