Source : Webster's Revised Unabridged Dictionary (1913)

Episcopalian \E*pis`co*pa"li*an\, a.
   Pertaining to bishops, or government by bishops; episcopal;
   specifically, of or relating to the Protestant Episcopal
   Church.

Episcopalian \E*pis`co*pa"li*an\, 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.

Source : WordNet®

Episcopalian
     adj : of or pertaining to or characteristic of the Episcopal
           church; "the Episcopal hierarachy"; "married by an
           Episcopalian minister" [syn: {Episcopal}]

Episcopalian
     n : a member of the Episcopal church