Appellate Jurisdiction Law and Legal Definition. Appellate jurisdiction refers to the power of a higher court to review and revise a lower court’s decision. Most appellate courts simply review the lower court’s decision to determine whether the lower court made any errors in applying the law.Click to see full answer. Likewise, people ask, what is meant by appellate jurisdiction of the Supreme Court?Appellate jurisdiction is the power of an appellate court to review, amend and overrule decisions of a trial court or other lower tribunal. Most appellate jurisdiction is legislatively created, and may consist of appeals by leave of the appellate court or by right.Additionally, what is meant by original and appellate jurisdiction? Original jurisdiction means that the court has the right to hear the case first. Appellate jurisdiction means that the court hears an appeal from a court of original jurisdiction. The federal district courts serve as both trial courts and appellate courts. These courts hear appeals from the lower federal courts. Correspondingly, what do you mean by the appellate system? Appellate courts are the part of the judicial system that is responsible for hearing and reviewing appeals from legal cases that have already been heard in a trial-level or other lower court. Appellate courts are present at the state and federal levels.Why is appellate jurisdiction important?Appellate jurisdiction is the power of a higher court to hear appeals from a lower court. The higher court can review decisions and change outcomes of the decisions of lower courts.