Occlusion - Definition
occlusion
n 1: closure or blockage (as of a blood vessel)
2: (meteorology) a composite front when colder air surrounds a
mass of warm air and forces it aloft [syn: occluded front,
occlusion]
3: (dentistry) the normal spatial relation of the teeth when the
jaws are closed
4: an obstruction in a pipe or tube; "we had to call a plumber
to clear out the blockage in the drainpipe" [syn: blockage,
block, closure, occlusion, stop, stoppage]
5: the act of blocking [syn: blockage, closure, occlusion]