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retrorocket
ret·ro·rock·et [ réttrō ròkət ] (plural ret·ro·rock·ets)


noun 
Definition:
 
reverse thrust rocket: a small rocket engine on a spacecraft or missile that produces thrust to act against the main engines, used for decelerating
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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