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propellant

American  
[pruh-pel-uhnt] / prəˈpɛl ənt /

noun

  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.

propellant British  
/ prəˈpɛlənt /

noun

  1. something that provides or causes propulsion, such as the explosive charge in a gun or the fuel in a rocket

  2. 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

Other Word Forms

  • multipropellant noun

Etymology

Origin of propellant

First recorded in 1915–20; propel + -ant

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.