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.