monepiscopacy
/ˌmɒnɪˈpɪskəpəsi/Christian Church
noun
A system of Church government in which a diocese (in the early Church, a local congregation) is overseen by a single bishop; the exclusive authority of the bishop in governing a diocese under this system.
Origin
Late 19th century; earliest use found in Charles Gore (1853–1932), bishop of Oxford. From mono- + episcopacy.