propeller

noun

pro·​pel·​ler prə-ˈpe-lər How to pronounce propeller (audio)
variants or less commonly propellor
: one that propels
especially : a device that consists of a central hub with radiating blades placed and twisted so that each forms part of a helical surface and that is used to propel a vehicle (such as a ship or airplane)

Examples of propeller in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The aircraft features eight lift propellers and one propulsion propeller, allowing for a range of 125 miles (200 km) and 60 minutes of flying time on a full charge of its batteries. Abhimanyu Ghoshal, New Atlas, 13 Oct. 2025 The Port of Portland, which oversees general aviation in the region, acknowledged the uptick in helicopter and propeller aircraft activity. Stepheny Price, FOXNews.com, 12 Oct. 2025 By analyzing these patterns, advanced algorithms can detect and localize undersea sounds such as submarine engines, ship propellers, or seismic activity. Kapil Kajal, Interesting Engineering, 10 Oct. 2025 Its propeller guards offer it extra protection on take-off and landing. Chris McMullen, Space.com, 8 Oct. 2025 See All Example Sentences for propeller

Word History

Etymology

propel + -er entry 2

First Known Use

1780, in the meaning defined above

Time Traveler
The first known use of propeller was in 1780

Browse Nearby Words

Cite this Entry

“Propeller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propeller. Accessed 18 Oct. 2025.

Kids Definition

propeller

noun
pro·​pel·​ler prə-ˈpel-ər How to pronounce propeller (audio)
: a device consisting of a hub fitted with blades that is made to turn rapidly by an engine and is used especially for propelling airplanes and ships

More from Merriam-Webster on propeller

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