Dictionary.com
Thesaurus.com
Synonyms

occlusion

American  
[uh-kloo-zhuhn] / əˈklu ʒən /

noun

  1. the act of closing, blocking, or shutting something, or the state of being closed or blocked.

    Corrosion may cause both leakage and occlusion of the water supply pipes.

  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: many consonants in English, as /b/ and /k/, are articulated this way.

  5. Meteorology.

    1. an occluded front.

    2. the formation of an occluded front.

  6. Graphic Arts. an obstructed view, or occultation, of an object in three-dimensional space when line of sight is blocked by an intervening object.

    Augmented reality is only believable if rendered models respect occlusion and disappear behind real-world objects.


occlusion British  
/ əˈkluːsəl, əˈkluːʒən /

noun

  1. the act or process of occluding or the state of being occluded

  2. meteorol another term for occluded front

  3. dentistry the normal position of the teeth when the jaws are closed

  4. phonetics the complete closure of the vocal tract at some point, as in the closure prior to the articulation of a plosive

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

occlusion Scientific  
/ ə-klo̅o̅zhən /
  1. An obstruction in a passageway, especially of the body.

  2. The alignment of the upper and lower sets of teeth with each other.


Other Word Forms

  • nonocclusion noun
  • occlusal adjective
  • preocclusion noun

Etymology

Origin of occlusion

First recorded in 1635–45; from Latin occlūs(us) (past participle of occlūdere “to close up, shut”) + -ion; occlude

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In November, the Food and Drug Administration approved the drug for use in patients with macular edema following retinal vein occlusion, a condition where leaky blood vessels in the eye cause swelling.

From Barron's

"But if we can see the ultrasound finding, we can target the exact place where the occlusion occurs."

From BBC

The drugmaker said the Food and Drug Administration had approved Eylea HD for the treatment of patients with macular edema following retinal vein occlusion, a common cause of vision impairment in adults.

From Barron's

These unique cardiac metabolic and genetic features of the naked mole-rat heart led to enhanced energy reserves even during blood occlusion and return of blood flow after in vitro simulated heart attack.

From Science Daily

The results show that the proposed network performed better than existing models not only in the face of severe occlusions but also under various levels of adverse weather conditions.

From Science Daily