- a small auxiliary rocket engine on a larger rocket, missile, or spacecraft, that produces thrust in the opposite direction to the direction of flight in order to decelerate the vehicle or make it move backwards
Often shortened to: retro
| 单词 | retrorocket |
| 释义 | WordReference Random House Learner's Dictionary of American English © 2024 ret•ro•rock•et /ˈrɛtroʊˌrɑkɪt/USA pronunciation n. [countable] WordReference Random House Unabridged Dictionary of American English © 2024
ret•ro•rock•et (re′trō rok′it),USA pronunciation n.
Collins Concise English Dictionary © HarperCollins Publishers:: retrorocket /ˈrɛtrəʊˌrɒkɪt/ n
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