Definition from Wiktionary, the free dictionary
Alternative forms 
From the French clôture, closure.
- enPR: klō'chûr
- (law) In legislative assemblies that permit unlimited debate (filibuster); a motion, procedure or rule, by which debate is ended so that a vote may be taken on the matter. For example, in the United States Senate, a three-fifths majority vote of the body is required to invoke cloture and terminate debate.