motion to dismiss

request to cancel, request to void

A legal motion is a procedural device in law to bring a limited, contested matter before a court for decision. A motion may be thought of as a request to the judge (or judges) to make a decision about the case. Motions may be made at any point in administrative, criminal or civil proceedings, although that right is regulated by court rules which vary from place to place. The party requesting the motion is called the movant.
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In a civil case, a request to a judge by the defendant, asserting that even if all the allegations are true, the plaintiff is not entitled to any legal relief and thus the case should be dismissed.