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 tip of the right engine propeller blade separated and punctured the plane's fuselage, seriously injuring a passenger, according to the FAA. Arkansas Online, 1 June 2025 Additionally, the absence of spinning propellers means the Airbike can navigate through tight spaces with greater ease and safety. Kurt Knutsson, FOXNews.com, 1 June 2025 For this reason, the scientists had to develop a special algorithm that compensates for those changing variables by continuously adjusting the thrust delivered by each propeller. Ben Coxworth may 29, New Atlas, 29 May 2025 The wind hitting him, and the blast of the propeller, particles hitting him. Caroline Frost, Deadline, 25 May 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 13 Jun. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!