| 单词 | posigrade rocket |
| 释义 | posigrade rocket[ poz-i-greyd ] / ˈpɒz ɪˌgreɪd / noun Rocketry.an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight. Origin of posigrade rocket1960–65; posi(tive) + -grade (perhaps modeled on retrograde) Words nearby posigrade rocketposer, poseur, posey, posh, posho, posigrade rocket, posit, positif, position, positional notation, positional nystagmus Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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