au·to·gi·ro
| \ ˌȯ-tō-ˈjī-(ˌ)rō
\
\
variants:
or autogyro
plural autogiros
Definition of autogiro
: a rotary-wing aircraft that employs a propeller for forward motion and a freely rotating rotor for lift
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“Autogiro.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/autogiro. Accessed 22 May. 2022.
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Time Traveler for autogiro
The first known use of autogiro was in 1907
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