The part of the Christian Church historically originating in the Latin Church of the Western Roman Empire, including the Roman Catholic Church and the Anglican, Lutheran, and Reformed Churches, especially as distinct from the Eastern Orthodox Church.
Definition of Western Church in US English:
Western Church
proper noun
The part of the Christian Church historically originating in the Latin Church of the Western Roman Empire, including the Roman Catholic Church and the Anglican, Lutheran, and Reformed Churches, especially as distinct from the Eastern Orthodox Church.