- occlusion - closure or blockage (as of a blood vessel)
--1 is a kind of attack
--1 has particulars:laryngospasm; embolism; thromboembolism; thrombosis; coronary occlusion - occluded front, occlusion - (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft
--2 is a kind of front
- occlusion - (dentistry) the normal spatial relation of the teeth when the jaws are closed
--3 is a kind of position, spatial relation
- blockage, block, closure, occlusion, stop, stoppage - an obstruction in a pipe or tube; "we had to call a plumber to clear out the blockage in the drainpipe"
--4 is a kind of obstruction, obstructor, obstructer, impediment, impedimenta
--4 has particulars:breechblock, breech closer; plug, stopper, stopple; vapor lock, vapour lock - blockage, closure, occlusion - the act of blocking
--5 is a kind of obstruction
--5 has particulars: implosionDerived form: verb occlude1 - occluded front, occlusion - (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft