n. | 1. | The act of occluding, or the state of being occluded. | |||
2. | (Med.) The transient approximation of the edges of a natural opening; imperforation.
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Noun | 1. | occlusion - closure or blockage (as of a blood vessel) |
2. | occlusion - (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft Synonyms: occluded front | |
3. | occlusion - (dentistry) the normal spatial relation of the teeth when the jaws are closed | |
4. | occlusion - an obstruction in a pipe or tube; "we had to call a plumber to clear out the blockage in the drainpipe" | |
5. | occlusion - the act of blocking |