'ARB' definitions:

Definition of 'arb'

(from WordNet)
noun
Someone who engages in arbitrage (who purchases securities in one market for immediate resale in another in the hope of profiting from the price differential) [syn: arbitrageur, arbitrager, arb]

Acronyms for 'arb'

From: V.E.R.A.
  • Architecture Review Board (OpenGL, manufacturer, org.)