propeller

• Dispositif mécanique composé de pales rotatives qui repoussent l'air ou l'eau pour produire une poussée, utilisé principalement pour la propulsion des avions, des bateaux et d'autres véhicules.

A mechanical device with rotating blades that pushes against air or water to create thrust, commonly used to propel aircraft, ships, and other vehicles.

1. Rotating mechanical deviceB1formal

   A device with rotating blades that creates thrust to propel a vehicle through air or water.

   Hélice

   • The airplane's propeller spun rapidly before takeoff.
   • The boat's propeller was damaged by a submerged log.
   • Engineers designed a new propeller for the drone.

   Synonymesairscrewproprotorscrew