A break, discontinuance, or interruption
That which breaks off, or is broken off
The first shot in a game of snooker or other cue-game
To play the first shot in a game of snooker
The cancellation, erasure or deletion of something.
The cancellation of the function, structure, or both of a vessel or organ; for example, the occlusion of the lumen of a duct, blood vessel, or lymphatic vessel, be it solely functional (as when squeezed by nearby mass effect or inflammation) or both structural and functional (as when clogged with thrombus, embolus, or fibrosis).
The total destruction of something.