Also found in: Thesaurus, Encyclopedia, Wikipedia.
Related to step rocket: Rocket stage
See multistage rocket.
Switch to new thesaurus
|Noun||1.||step rocket - a rocket having two or more rocket engines (each with its own fuel) that are fired in succession and jettisoned when the fuel is exhausted|
booster rocket, booster unit, takeoff booster, takeoff rocket, booster - the first stage of a multistage rocket