occlusion

noun7

1. •
   The process of occluding, or something that occludes.
2. •
   Anything that obstructs or closes a vessel or canal.
3. •
   A closure within the vocal tract that produces an oral stop or nasal stop.
4. •
   The blocking of the view of part of an image by another.
5. •
   The alignment of the teeth when upper and lower jaws are brought together.
6. •
   An occluded front.
7. •
   The absorption of a gas or liquid by a substance such as a metal.