episcopal (adj.)

mid-15c., "belonging to or characteristic of bishops," from Middle French épiscopal (14c.), from Late Latin episcopalis, from Latin episcopus "an overseer" (see bishop). Reference to a church governed by bishops is 1752. With a capital E-, the ordinary designation of the Anglican church in the U.S. and Scotland, so called because its bishops are superior to other clergy. Chambers' "Cyclopaedia" (1751) has episcopicide "the murdering of a bishop."

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Definitions of episcopal from WordNet
episcopal (adj.)
denoting or governed by or relating to a bishop or bishops;
Synonyms: pontifical
Episcopal (adj.)
of or pertaining to or characteristic of the Episcopal church;
Synonyms: Episcopalian