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
   - occluded front 
3. (dentistry) the normal spatial relation of the teeth when the jaws are closed 
4. An obstruction in a pipe or tube
   - blockage, block, closure, stop, stoppage 
5. The act of blocking
   - blockage, closure

Derived forms: occlusions

See also: occlude, occlusive

Type of: attack, front, impediment, impedimenta, obstructer, obstruction, obstructor, position, spatial relation

Encyclopedia: Occlusion

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