from The American Heritage® Dictionary of the English Language, 4th Edition
- n. 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 Wiktionary, Creative Commons Attribution/Share-Alike License
- n. 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.
- n. The structure on the end of the palp of male arachnids which contains the opening to the ejaculatory duct.
from the GNU version of the Collaborative International Dictionary of English
- n. Something inserted, as a wedge; the piston or sucker of a pump or syringe.
- n. 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 The Century Dictionary and Cyclopedia
- n. Something inserted into or acting within something else; that which thrusts or drives, as a piston or wedge.
- n. The clot of fibrin obstructing a blood-vessel, causing embolism: as, capillary emboli.
- n. The nucleus emboliformis of the cerebellum.
- n. Also embolon, embolum.
- n. 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 WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood
Latin, piston of a pump, from Greek embolos, stopper, plug, from emballein, to insert; see emblem.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin embolus ("piston"), from Ancient Greek ἔμβολος (embolos, "peg, stopper"). (Wiktionary)