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 rocket

1960–65; posi(tive) + -grade (perhaps modeled on retrograde)

Words nearby posigrade rocket