Blockage of a passage, canal, opening, or vessel in the body.
This may be due to disease (for example, a pulmonary embolism) or medically induced.
Occlusion also describes eye-patching for amblyopia, and the relationship between the upper and lower teeth when the jaw is shut.
(See also malocclusion.)
The way that the TEETH ?t together when the jaws close. Also the closing or obstruction of a duct, hollow organ, or blood vessel.
n. 1. the closing or obstruction of a hollow organ or part. 2. (in dentistry) the relation of the upper and lower teeth when they are in contact. Maximum contact between the teeth is known as intercuspal (or centric) occlusion. See also malocclusion.
Blockage of an artery supplying blood to the retina, most commonly due to thrombosis or embolism, The disorder can result in permanent blindness or loss of part of the field of vision, depending on the artery affected and whether or not the condition can be treated quickly enough.... retinal artery occlusion
Health Encyclopedia