the principal church of a diocese, containing the bishop's throne.

(in nonepiscopal denominations) any of various important churches.

pertaining to or containing a bishop's throne.

pertaining to or emanating from a chair of office or authority.

noun

basilica , bishop’s seat , chancel , holy place , house of god , house of prayer , house of worship , minster , place of worship , sanctuary , temple , church , duomo