planeside adjective 1noun 1 adjective1 •Beside an airplane; particularly used of baggage check or security searchesAs a frequent traveler, I often take two suitcases through security but drop them off planeside before boarding, to be stored with other checked bags while in flight. — 2009 noun1 •A position beside an airplane.In particular was the momentary departure for Vietnam of a brigade of the 82d Airborne Division from Fort Bragg—with LBJ shaking hands at planeside. — 2012
