■ noun
1》 an inert fluid, liquefied under pressure, in which the active contents of an aerosol are dispersed.
2》 an explosive that fires bullets from a firearm.
3》 a substance used as a reagent in a rocket engine to provide thrust.
■ adjective variant of propellent .
Origin
C17: orig. from L. propellent- , propellere 'drive ahead (of oneself)', later from propel .