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6 dictionary results for: Occlusion
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
oc·clu·sion       [uh-kloo-zhuhn] Pronunciation Key
–noun
1.the act or state of occluding or the state of being occluded.
2.Dentistry. the fitting together of the teeth of the lower jaw with the corresponding teeth of the upper jaw when the jaws are closed.
3.Pathology. closure or blockage of a blood vessel: coronary occlusion.
4.Phonetics. momentary complete closure at some area in the vocal tract, causing stoppage of the flow of air and accumulation of pressure.
5.Meteorology.
a.the formation of an occluded front.
b.occluded front.
[Origin: 1635–45; < L occlūs(us) (ptp. of occlūdere to occlude) + -ion]

—Related forms
oc·clu·sal       [uh-kloo-suhl, -zuhl] Pronunciation Key, adjective
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
oc·clu·sion       (ə-klōō'zhən)  Pronunciation Key 
n.  
    1. The process of occluding.
    2. Something that occludes.
    3. The process of occluding air masses.
    4. An occluded front.
  2. Medicine An obstruction or a closure of a passageway or vessel.
  3. Dentistry The alignment of the teeth of the upper and lower jaws when brought together.
  4. Meteorology
    1. The process of occluding air masses.
    2. An occluded front.
  5. Linguistics Closure at some point in the vocal tract that blocks the flow of air in the production of an oral or nasal stop.


[From Latin occlūsus, past participle of occlūdere, to occlude; see occlude.]

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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WordNet - Cite This Source - Share This
occlusion

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

WordNet® 3.0, © 2006 by Princeton University.
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The American Heritage Science Dictionary - Cite This Source - Share This
occlusion       (ə-kl'zhən)  Pronunciation Key 
  1. An obstruction in a passageway, especially of the body.
  2. The alignment of the upper and lower sets of teeth with each other.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

occlusion oc·clu·sion (ə-kl&oomacr;'zhən)
n.

  1. The act of occluding or the state of being occluded.
  2. An obstruction or a closure of a body passage.
  3. Any contact between the cutting or chewing surfaces of opposing teeth.
  4. The alignment of the teeth of the upper and lower jaws when brought together.
  5. The absorption of a gas or other substance, as by a metal.
  6. The inclusion of one substance within another.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Occlusion

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.

Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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