retrorocket — 영어 사전

명사

1. A small rocket engine on a larger rocket or spacecraft, designed to slow or reverse its motion.

   예문

   더 많은 예문 (1)

   At nine minutes and nine seconds after launch, the second stage separates, firing small retrorockets to help it back safely away from the remainder of the spacecraft.

명사

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

   상위어

   rocketrocket engine