| 单词 | retrorocket |
| 释义 | retrorocketor ret·ro-rock·et[ re-troh-rok-it ] / ˈrɛ troʊˌrɒk ɪt / nouna small, auxiliary rocket engine, forming a part of a larger rocket vehicle and having its exhaust nozzle pointed toward the direction of flight, for decelerating the larger rocket, separating one stage from another, etc. Origin of retrorocketFirst recorded in 1945–50; retro- + rocket1 Words nearby retrorocketretroposon, retropubic space, retropulsion, retroreflective, retroreflector, retrorocket, retrorse, retroserrate, retroserrulate, retrosexual, retrospect Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for retrorocketretrorocket / (ˈrɛtrəʊˌrɒkɪt) / nouna 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 backwardsOften shortened to: retro Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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