autogyro n 1: an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller [syn: {autogiro}, {autogyro}, {gyroplane}]
autogyro \autogyro\ n. an aircraft that is supported in flight by unpowered rotating horizontal wings (or blades); forward propulsion is provided by a conventional propeller. Syn: autogiro, gryoplane [WordNet 1.5]