Definition of propeller in English:


Line breaks: pro¦pel|ler
Pronunciation: /prəˈpɛlə
(also propellor)


  • A mechanical device for propelling a boat or aircraft, consisting of a revolving shaft with two or more broad, angled blades attached to it.
    More example sentences
    • One engine on the top of the aircraft is attached to large propellers that produce lift, much like a helicopter.
    • As it was slowing to a stop, the aircraft shuddered and its landing gear collapsed, propellers digging into the runway.
    • The drone of aircraft propellers and thump of helicopter rotors made way for screaming auto engines and squealing tyres.
    screw, airscrew, rotor, vane, propulsor
    informal prop

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