1. Noun
The act of occluding, or the state of being occluded.
2. Noun
The transient approximation of the edges of a natural opening; imperforation.
3. Noun
an obstruction in a pipe or tube; "we had to call a plumber to clear out the blockage in the drainpipe"
Vocabulary classified under Literature and rhetoric
4. Noun
(meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft
Vocabulary classified under Nature and environment
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