propeller

noun

pro·​pel·​ler prə-ˈpe-lər 

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

Its integrated de-icing system automatically heats the propellers when icing conditions are detected. — Neetika Walter, Interesting Engineering, 8 Oct. 2026

To power paraglide, Hutzler wears an engine propeller backpack called a paramotor, which can typically cost between $8,000 and $9,000. — Yi-Jin Yu, ABC News, 1 Oct. 2026

The effects team has set giant airplane propeller–type fans right off camera. — Kyle MacLachlan, HollywoodReporter, 29 Sep. 2026

Samson says the system powers the wheels on the ground and the propellers in flight. — Kurt Knutsson, FOXNews.com, 25 Sep. 2026

Word History

Etymology

propel + -er entry 2

First Known Use

1780, in the meaning defined above

Phrases Containing propeller

• propeller-head
• screw propeller

Rhymes for propeller

• bestseller
• bookseller
• flagellar
• impeller
• lamellar
• micellar
• modeller
• ocellar
• patellar
• reseller
• scutellar
• beller

Kids Definition

propeller

noun

pro·​pel·​ler prə-ˈpel-ər 

: 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