Wiktionary
n. a vote of no confidence.
Wikipedia
A motion of no confidence (alternatively vote of no confidence, censure motion, no-confidence motion, or (unsuccessful) confidence motion) is a statement or vote that a person or persons in a position of responsibility (government, managerial, etc.) is no longer deemed fit to hold that position: perhaps because they are inadequate in some respect, are failing to carry out obligations, or are making decisions that other members feel are detrimental. As a parliamentary motion, it demonstrates to the head of state that the elected parliament no longer has confidence in (one or more members of) the appointed government.
A censure motion is different from a no-confidence motion. Depending on the constitution of the body concerned, "No Confidence" may lead to compulsory resignation of the council of ministers or other position-holder(s), whereas "Censure" is meant to show disapproval and does not result in the resignation of ministers. The censure motion can be against an individual minister or a group of ministers, but the no-confidence motion is directed against the entire cabinet. Again, depending on the applicable rules, censure motions may need to state the reasons for the motion while no-confidence motions may not require reasons to be specified.