gyrocopter

== English == === Etymology === From gyro- +‎ -copter. === Pronunciation === IPA(key): /ˈdʒaɪroʊˌkɒptər/ Hyphenation: gy‧ro‧cop‧ter === Noun === gyrocopter (plural gyrocopters) (aviation) An autogyro, similar to a helicopter. A gyrocopter’s rotor spins freely due to airflow rather than engine power. ==== See also ====