An intermediate court of the federal judicial system or a state appellate court. Not all states have intermediate-level courts, but of those that do, many are called the Court of Appeals. In some states, appeals are divided between a court of criminal appeals and a court of civil appeals. In other states there are specialized appeals courts as well. For example, in Pennsylvania, the Commonwealth Court handles appeals when a state agency is a party.
Glossary, Kolbert and Mettger, Censoring the Web (the New Press)