airborne \ˈ ̷ ̷ˌ ̷ ̷\adjective 1.: supported wholly by aerodynamic and aerostatic forces < an airplane is airborne after attaining flying speed in takeoff > 2.: transported or designed to be transported by air < airborne infantry > < airborne bacteria > 3.: employing forces (as paratroops) that are transported by air < an airborne attack >