admiralty clauseglossary / ADMIRALTY CLAUSE Admiralty Clause. The clause of the U.S. Constitution giving the federal courts jurisdiction over admiralty and maritime cases. U.S. Const. art. III, § 2, cl. 1. 词条贡献者 双语律师Matthew,国际知名法学院法律专业,擅长翻译各类与商业秘密起诉与调查相关的法律文件。