| occlusion | the act of blocking |
|---|---|
| occlusion | an obstruction in a pipe or tube |
| occlusion | (dentistry) the normal spatial relation of the teeth when the jaws are closed |
| occlusion | (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft |
| occlusion | closure or blockage (as of a blood vessel) |