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Definition of Step rocket
1. Noun. 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.
Exact synonyms: Multistage Rocket
Terms within: Booster, Booster Rocket, Booster Unit, Takeoff Booster, Takeoff Rocket
Generic synonyms: Projectile, Rocket
Terms within: Booster, Booster Rocket, Booster Unit, Takeoff Booster, Takeoff Rocket
Generic synonyms: Projectile, Rocket