occlusion

Noun
  1. Closure or blockage (as of a blood vessel) (synset 114124251)
    is a type of: attack - a sudden occurrence of an uncontrollable condition
    subtypes:
    • 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
  2. (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft (synset 111481479)
    referred to in: meteorology - the earth science dealing with phenomena of the atmosphere (especially weather)
    is a type of: front - (meteorology) the atmospheric phenomenon created at the boundary between two different air masses
    same as: occluded front
  3. (dentistry) the normal spatial relation of the teeth when the jaws are closed (synset 105075097)
    referred to in: dental medicine, dentistry, odontology - the branch of medicine dealing with the anatomy and development and diseases of the teeth
    is a type of: position, spatial relation - the spatial property of a place where or way in which something is situated
  4. An obstruction in a pipe or tube (synset 102856708)
    "we had to call a plumber to clear out the blockage in the drainpipe"
    is a type of: impediment, impedimenta, obstructer, obstruction, obstructor - any structure that makes progress difficult
    subtypes:
    • breech closer, breechblock - a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing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)
    same as: block, blockage, closure, stop, stoppage
  5. The act of blocking (synset 101076618)
    is a type of: obstruction - the act of obstructing
    subtypes: implosion - the initial occluded phase of a stop consonant
    same as: blockage, closure

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