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

The ground crews have to navigate numerous planes landing, loading and taking off, while avoiding spinning propellers and keeping the equipment prepared. — Regina Elling, San Diego Union-Tribune, 21 July 2026

During testing, the electric powertrain both drove the propeller and generated electricity to recharge the onboard battery. — Aamir Khollam, Interesting Engineering, 20 July 2026

The propeller still makes an audible whir that gives the drone away even when the eye can't, and its support wires and rods remain partly visible. — New Atlas, 17 July 2026

Carbon fiber rods connect batteries, a controller, some counterweights, and a motor and propeller. — IEEE Spectrum, 16 July 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