- a propelling agent.
- the charge of explosive used to propel the projectile from a gun.
- a substance, usually a mixture of fuel and oxidizer, for propelling a rocket.
- a compressed inert gas that serves to dispense the contents of an aerosol container when the pressure is released.
- something that provides or causes propulsion, such as the explosive charge in a gun or the fuel in a rocket
- the gas used to carry the liquid droplets in an aerosol spray
