trolley coach(n = noun.artifact) trackless trolley, trolleybus - a passenger bus with an electric motor that draws power from overhead wires; Array
is a kind of autobus, bus, charabanc, coach, double-decker, jitney, motorbus, motorcoach, omnibus, passenger vehicle
has parts: electric motor

baseball coach, basketball coach, batting coach, coach, coach dog, coach horse, coach house, coach station, football coach, hackney coach, hockey coach, labor coach, line coach, mail coach, pitching coach, slip coach, tea trolley, tennis coach, trackless trolley, trolley, trolley car, trolley line, trolley wire