retrorocket

• Petit moteur-fusée monté sur une fusée plus grande ou un engin spatial, utilisé pour réduire sa vitesse ou modifier sa trajectoire.

A small rocket engine mounted on a larger rocket or spacecraft, used to slow its speed or change its trajectory.

1. Spacecraft braking engineC1formaltechnical

   A small rocket engine on a larger rocket or spacecraft that is fired to slow down or alter its course.

   rétrofusée de freinage

   • The spacecraft fired its retrorockets to slow down for landing.
   • Retrorockets are essential for controlled descent on other planets.
   • The astronauts activated the retrorockets to adjust their orbit.