Definition - What does Appellate Court mean?
An appellate court is any court that can hear an appeal of a trial court. It is a superior court to the court that made the decision that is being appealed, and there can be several levels of appellate court. The highest appellate court is the Supreme Court, which hears about 100 cases per year and has a few thousand applications annually, many of which are denied outright on merit.
Justipedia explains Appellate Court
An appellate court has the ability to overturn a ruling made by a lesser court in any instance where the appellate court believes that the original court failed in its duties to properly understand the matter at hand. If a person is convicted of a felony that is derived from an injustice, it is normal for the person to appeal the case all the way through the appellate system until their facts are recognized.