| Noun | 1. | heavier-than-air craft - a non-buoyant aircraft that requires a source of power to hold it aloft and to propel it aircraft - a vehicle that can fly aeroplane, airplane, plane - an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane" autogiro, autogyro, gyroplane - an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller pilotless aircraft, radio-controlled aircraft, drone - an aircraft without a pilot that is operated by remote control eggbeater, helicopter, whirlybird, chopper - an aircraft without wings that obtains its lift from the rotation of overhead blades ornithopter, orthopter - heavier-than-air craft that is propelled by the flapping of wings military plane, warplane - an aircraft designed and used for combat |