a. [ Cf. F. arbitrable, fr. L. arbitrari. See Arbitrate, v. t. ] Capable of being decided by arbitration; determinable. [ Archaic ] Bp. Hall. [ 1913 Webster ]
n. [ F., fr. arbiter to give judgment, L. arbitrari. ]
n. same as arbitrageur.
n. someone who engages in arbitrage; i. e. one who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential.