arbitrator
arbitrator, n. A neutral person who resolves disputes between parties, esp. by means of formal arbitration. ME-DIATOR; ARBITER. — Also termed (in Latin) compromissarius. [Cases: Arbitration 26, 29. C.J.S. Arbi-tration §§ 58, 60, 62, 68, 107, 109.] — arbitratorship, n.