The act of ending or attempting to end parliamentary debate by invoking cloture rules.
Present participle of the verb 'cloture' (to invoke cloture), itself derived from the noun 'cloture' which comes from French 'clôture' and Latin 'claudere' (to close).
The word 'cloture' itself is quite recent in English—it wasn't widely used until the 1800s when legislatures grew so large that someone had to invent a way to shut people up and actually get things voted on!
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