English Dictionary

OCCLUSION

Pronunciation (US): Play  (GB): Play

IPA (US): 

 Dictionary entry overview: What does occlusion mean? 

OCCLUSION (noun)
  The noun OCCLUSION has 5 senses:

1. closure or blockage (as of a blood vessel)play

2. (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloftplay

3. (dentistry) the normal spatial relation of the teeth when the jaws are closedplay

4. an obstruction in a pipe or tubeplay

5. the act of blockingplay

  Familiarity information: OCCLUSION used as a noun is common.


 Dictionary entry details 


OCCLUSION (noun)


Sense 1

Meaning:

Closure or blockage (as of a blood vessel)

Classified under:

Nouns denoting stable states of affairs

Hypernyms ("occlusion" is a kind of...):

attack (a sudden occurrence of an uncontrollable condition)

Hyponyms (each of the following is a kind of "occlusion"):

laryngospasm (a closure of the larynx that blocks the passage of air to the lungs)

embolism (occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle))

thromboembolism (occlusion of a blood vessel by an embolus that has broken away from a thrombus)

thrombosis (the formation or presence of a thrombus (a clot of coagulated blood attached at the site of its formation) in a blood vessel)

coronary occlusion (occlusion of a coronary artery caused either by progressive atherosclerosis or by a blood clot)


Sense 2

Meaning:

(meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft

Classified under:

Nouns denoting natural phenomena

Synonyms:

occluded front; occlusion

Hypernyms ("occlusion" is a kind of...):

front ((meteorology) the atmospheric phenomenon created at the boundary between two different air masses)

Domain category:

meteorology (the earth science dealing with phenomena of the atmosphere (especially weather))


Sense 3

Meaning:

(dentistry) the normal spatial relation of the teeth when the jaws are closed

Classified under:

Nouns denoting attributes of people and objects

Hypernyms ("occlusion" is a kind of...):

position; spatial relation (the spatial property of a place where or way in which something is situated)

Domain category:

dental medicine; dentistry; odontology (the branch of medicine dealing with the anatomy and development and diseases of the teeth)


Sense 4

Meaning:

An obstruction in a pipe or tube

Classified under:

Nouns denoting man-made objects

Synonyms:

block; blockage; closure; occlusion; stop; stoppage

Context example:

we had to call a plumber to clear out the blockage in the drainpipe

Hypernyms ("occlusion" is a kind of...):

impediment; impedimenta; obstructer; obstruction; obstructor (any structure that makes progress difficult)

Hyponyms (each of the following is a kind of "occlusion"):

breech closer; breechblock (a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing)

plug; stopper; stopple (blockage consisting of an object designed to fill a hole tightly)

vapor lock; vapour lock (a stoppage in a pipeline caused by gas bubbles (especially a stoppage that develops in hot weather in an internal-combustion engine when fuel in the gas line boils and forms bubbles that block the flow of gasoline to the carburetor))


Sense 5

Meaning:

The act of blocking

Classified under:

Nouns denoting acts or actions

Synonyms:

blockage; closure; occlusion

Hypernyms ("occlusion" is a kind of...):

obstruction (the act of obstructing)

Hyponyms (each of the following is a kind of "occlusion"):

implosion (the initial occluded phase of a stop consonant)

Derivation:

occlude (block passage through)


 Context examples 


In adults occlusion may occur spontaneously or after injury or nasal disease.

(Lacrimal Duct Obstruction, NLM, Medical Subject Headings)

Sometimes doctors use drugs or other agents to cause hepatic arterial occlusion on purpose.

(Hepatic arterial occlusion, NCI Dictionary)

The thrombus transforms a region of plaque narrowing to one of complete vessel occlusion.

(Acute Myocardial Infarction Pathway, NCI Thesaurus/BIOCARTA)

Atherogenic heart disease involves the formation of plaques in arterial walls that narrow the arterial passage, restricting blood flow and increasing the risk of occlusion of blood flow by a myocardial infarction.

(LDL Pathway, NCI Thesaurus/BIOCARTA)

A disorder characterized by damage of the hepatic sinusoidal endothelial cells of the hepatic venules that leads to venular occlusion and hepatocellular necrosis.

(Liver Veno-Occlusive Disease, NCI Thesaurus)

Acute occlusion of a peripheral blood vessel resulting from intravascular migration of material.

(Peripheral Embolus, NCI Thesaurus/ACC)

The arterial occlusion results in chronic or acute pain usually in the lower limbs due to muscle ischemia.

(Peripheral Arterial Occlusive Disease, NCI Thesaurus)

Reshaping a tooth surface to modify the dental occlusion.

(Occlusal Adjustment, NCI Thesaurus)

This leads to scarring at the inner wall of the veins and possible occlusion of the veins.

(Ethanolamine Oleate, NCI Thesaurus)

A congenital or acquired occlusion of an opening in any part of the female genital tract.

(Gynatresia, NCI Thesaurus)



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