retrorocketnoun [ C ]
uk/ˌret.rəʊˈrɒk.ɪt/us/ˌret.rəˈrɑː.kɪt/a rocket on a spacecraft or an aircraft that fires in the opposite direction to the direction in which the vehicle is travelling, in order to slow it down
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Space travel
- astronaut
- astronautics
- autopilot
- blast
- command module
- earthbound
- flyby
- heat shield
- launch pad
- moon buggy
- NASA
- nose cone
- rocket
- rocket science
- rocket ship
- space probe
- spaceman
- touchdown
- tracking station
- UFO
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Air travel: parts of aeroplanes