Definitions for: Occlusion


[n] the act of blocking
[n] an obstruction in a pipe or tube; "we had to call a plumber to clear out the blockage in the drainpipe"
[n] (dentistry) the normal spatial relation of the teeth when the jaws are closed
[n] (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft
[n] closure or blockage (as of a blood vessel)



Webster (1913) Definition: Oc*clu"sion, n. [See Occlude.]
1. The act of occluding, or the state of being occluded.

Constriction and occlusion of the orifice. --Howell.

2. (Med.) The transient approximation of the edges of a
natural opening; imperforation. --Dunglison.

Occlusion of gases (Chem. & Physics), the phenomenon of
absorbing gases, as exhibited by platinum, palladium,
iron, or charcoal; thus, palladium absorbs, or occludes,
nearly a thousand times its own volume of hydrogen, and in
this case a chemical compound seems to be formed.

Synonyms: block, blockage, blockage, closure, closure, occluded front, stop, stoppage

See Also: attack, breech closer, breechblock, coronary occlusion, embolism, front, impediment, impedimenta, implosion, laryngospasm, obstructer, obstruction, obstruction, obstructor, plug, position, spatial relation, stopper, stopple, thromboembolism, thrombosis, vapor lock, vapour lock

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