As used in ORS 34.105 to 34.240:\n(1) 'Adverse party' means a beneficially interested party to a judicial or administrative proceeding from which a mandamus proceeding arises, whose interests are adverse to the relator.\n(2) 'Counsel for defendant' means the attorney who appears on behalf of the defendant in a mandamus proceeding as provided in ORS 34.130 (4).\n(3) 'Defendant' means the court, corporation, board, officer or person against whom relief is sought in a mandamus proceeding.\n(4) 'Relator' means the beneficially interested party on whose relation a mandamus proceeding is brought. [1989 c.702 §2]
Oregon Legal Code