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posigrade rocket: Meaning and Definition of

pos'i•grade rock"et

Pronunciation: (poz'i-grād"), [key]
— Rocketry. Rocketry.
  1. an auxiliary rocket used to separate the sections of a multistage rocket, fired in the direction of flight.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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