exclusive jurisdiction
A court’s power to adjudicate an action or class of actions to the exclusion of all other courts [federal district courts have exclusive jurisdiction over actions brought under the Securities Exchange Act]. Cf. concurrent jurisdiction. [Cases: Courts 472, 489, 510; Equity 44; Federal Courts 1131. C.J.S. Courts §§ 186, 203, 222, 225; Equity §§ 19, 51–53.]