from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun 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.

from The Century Dictionary.

  • noun Something inserted into or acting within something else; that which thrusts or drives, as a piston or wedge.
  • noun The clot of fibrin obstructing a blood-vessel, causing embolism: as, capillary emboli.
  • noun The nucleus emboliformis of the cerebellum.
  • noun Also embolon, embolum.
  • noun The terminal portion of the digital joint of the palpus of a male spider, containing an orifice near the tip through which the seminal fluid is collected and later ejected.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Something inserted, as a wedge; the piston or sucker of a pump or syringe.
  • noun (Med.) A plug of some substance lodged in a blood vessel, being brought thither by the blood current. It consists most frequently of a clot of fibrin, a detached shred of a morbid growth, a globule of fat, or a microscopic organism.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun pathology An obstruction causing an embolism: a blood clot, air bubble or other matter carried by the blood stream and causing a blockage or occlusion of a blood vessel.
  • noun zoology The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood


from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin, piston of a pump, from Greek embolos, stopper, plug, from emballein, to insert; see emblem.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin embolus ("piston"), from Ancient Greek ἔμβολος (embolos, "peg, stopper").



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