1. the district within the jurisdiction of an archbishop or a metropolitan or one of the territorial divisions of an ecclesiastical order; - Example: "the general of the Jesuits has several provinces under him"
WordNet (r) 3.0 (2006):
ecclesiastical province
n 1: the district within the jurisdiction of an archbishop or a
metropolitan or one of the territorial divisions of an
ecclesiastical order; "the general of the Jesuits has
several provinces under him"