Ar"bi*tra`tor (#), n. [L., fr. arbitrari: cf. F. arbitrateur.]
A person, or one of two or more persons, chosen by parties who have a controversy, to determine their differences. See Arbitration.
One who has the power of deciding or prescribing without control; a ruler; a governor.
Though Heaven be shut,
And Heaven's high Arbitrators sit secure.
Masters of their own terms and arbitrators of a peace.
Syn. -- Judge; umpire; referee; arbiter. See Judge.
© Webster 1913.