From BiblePortal Wikipedia

Webster's Dictionary [1]

(1): ( n.) One who belongs to an episcopal church, or adheres to the episcopal form of church government and discipline; a churchman; specifically, in the United States, a member of the Protestant Episcopal Church.

(2): ( a.) Pertaining to bishops, or government by bishops; episcopal; specifically, of or relating to the Protestant Episcopal Church.

Charles Buck Theological Dictionary [2]

One who prefers the episcopal government and discipline to all others.

See last article.