[ pruh-pel-uh nt ]
/ prəˈpɛl ənt /


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.

Origin of propellant

First recorded in 1915–20; propel + -ant

Related forms

mul·ti·pro·pel·lant, noun

Can be confused

propellant propellent Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for propellant

British Dictionary definitions for propellant



/ (prəˈpɛlənt) /


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

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012