closure or blockage (as of a blood vessel)

(meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft

[ Syn: occluded front ]

(dentistry) the normal spatial relation of the teeth when the jaws are closed

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 ]

the act of blocking

[ Syn: blockage , closure ]