The Collaborative International Dictionary of English v.0.48:

Anglo-Catholic \An"glo-Cath"o*lic\, a.,
   Of or pertaining to a church modeled on the English
   Reformation; Anglican; -- sometimes restricted to the
   ritualistic or High Church section of the Church of England.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Anglo-Catholic \An"glo-Cath"o*lic\, n.
   A member of the Church of England who contends for its
   catholic character; more specifically, a High Churchman.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Anglo-catholic
    adj 1: supporting the Anglican Church