D defs.my
Entry 1 sense Webster, 1913

arbitrageur

· IPA /ˈɑː(ɹ)bɪtɹɑˈʒɝ(ɹ)/
01 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…
  1. 1.
    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. See: arbitrage
Syn. arb, arbitrager.