case or controversy requirementglossary / case-or-controversy requirement The constitutional requirement that, for a federal court to hear a case, the case must involve an actual dispute. See CONTROVERSY(3); advisory opinion under OPINION(1). [Cases: Federal Courts 12.] 词条贡献者 资深译员Fang,毕业于美国一流的高级翻译学院,专注翻译各种与主权及机构投资有关的法律文件。