/preuh pel"euhnt/ , n.
1. a propelling agent.
2. the charge of explosive used to propel the projectile from a gun.
3. a substance, usually a mixture of fuel and oxidizer, for propelling a rocket.
4. a compressed inert gas that serves to dispense the contents of an aerosol container when the pressure is released.
[ 1915-20; PROPEL + -ANT ]