sacerdotalism

from WordNet (r) 3.0 (2006)

sacerdotalism
    n 1: a belief that priests can act as mediators between human
         beings and God

from The Collaborative International Dictionary of English v.0.48

Sacerdotalism \Sac`er*do"tal*ism\, n.
   The system, style, spirit, or character, of a priesthood, or
   sacerdotal order; devotion to the interests of the sacerdotal
   order.
   [1913 Webster]