cloture
noun [ U ] politics specialized uk/ˈkləʊ.tʃʊər/ us/ˈkloʊ.tʃʊr/
US (UK closure)（议会等中的）终止辩论提付表决
a process for ending a debate (= formal discussion) in a governing group so there can be a vote
They needed to gain 60 votes to invoke cloture. 他们需要获得60票才能启动终止辩论程序。