Occlusion

From Wikipedia
Occlusion may refer to:

Computers

 * Ambient occlusion, a shading method used in 3D computer graphics
 * Screen space ambient occlusion (SSAO), a specific implementation of the above computer graphics rendering technique
 * Occlusion culling or hidden surface determination, a 3D computer graphics process

Health and anatomy

 * Occlusion (dentistry), the manner in which the upper and lower teeth come together when the mouth is closed.
 * Occlusion effect, an audio phenomenon that occurs when one closes the opening into the ear canal and the loudness of low pitched sounds increases
 * Occlusion miliaria, a skin condition that is accompanied by anhidrosis and increased susceptibility to heat
 * Vascular occlusion, blockage of a blood vessel
 * Vascular occlusion training or blood flow restriction training is a technique done by some bodybuilders, utilizing this