The Dassault Rafale is a French twin-engined delta-wing highly agile multi-role fighter aircraft designed and built by Dassault Aviation. Dassault uses \”Omni Role\” as a marketing term in an effort to differentiate the aircraft from other \”multi-role\” fighters that have primary and secondary roles. Dassault also uses the term to indicate the Rafale\’s ability to switch from one role to another during a single sortie, although the term is mostly meant to encapsulate the fact that the Rafale is replacing seven specialised planes.
From: http://en.wikipedia.org/wiki/Rafale