occlusion

Noun

• the act of blocking

• an obstruction in a pipe or tube
  • we had to call a plumber to clear out the blockage in the drainpipe
    

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

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

• closure or blockage (as of a blood vessel)

Related words

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