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   propellant

   /prəˈpɛlənt/

   noun

   • 1. a substance that propels something.
   • ▪ an inert fluid, liquefied under pressure, in which the active contents of an aerosol are dispersed: "the main uses of CFCs are in aerosols as propellants"
   • ▪ an explosive that fires bullets from a firearm: "the common gun propellants are either nitrocellulose or a mixture of nitrocellulose and nitroglycerine"
   • ▪ a substance used as a reagent in a rocket engine to provide thrust: "rocket propellants"

   adjective

   • 1. capable of propelling something: "propellant gases"

   Word Origin mid 17th century: originally from Latin propellent- ‘driving ahead (of oneself)’, from the verb propellere, later from propel.

   Scrabble Points: 14

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