occlusion

Etymology
Borrowed from, from the Classical , from +.

Noun

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

Etymology
, from the Classical, from +.