Answer: propellant

AnswerCrossword Clue
PROPELLANTAgent that sets off a rocket.
PROPELLANTLaunching-pad fuel
propellantAn explosive that fires bullets from a firearm
propellantsomething that propels also PROPELLENT
propellantA substance used as a reagent in a rocket engine to provide thrust
propellantA thing or substance that causes something to move or be driven forward or outward, in particular