[au.to.gi.ro] or au.to.gy.ro n, pl -ros [fr. Autogiro, a trademark] (1923): a rotary-wing aircraft that employs a propeller for forward motion and a freely rotating rotor for lift
AUTOGIRO
Meaning of AUTOGIRO in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012