What is another word for retrorocket?
Pronunciation: [ɹˌɛtɹə͡ʊɹˈɒkɪt] (IPA) 
Synonyms for the word "retrorocket" include retrothruster, retro-jet, and deceleration engine. All of these terms describe a type of rocket propulsion system that is used to slow down or stop the forward motion of a spacecraft or other type of vehicle. Retrorockets are essential for allowing astronauts to re-enter the Earth's atmosphere safely by slowing down their spacecraft to prevent it from burning up on re-entry. These rockets work by firing in the opposite direction to the direction of travel, providing enough force to overcome the forward momentum of the spacecraft and bring it to a stop. Different types of retrorockets are used depending on the size and weight of the spacecraft.
