occlusion

n 1: closure or blockage of a blood vessel

2: a composite front when colder air surrounds a mass of warm

air and forces it aloft [syn: {occluded front}]

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}, {stop}, {stoppage}]

5: the act of blocking [syn: {blockage}, {closure}]