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propellant |
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propellant, propellent [prəˈpɛlənt] n 1. (Physics / General Physics) something that provides or causes propulsion, such as the explosive charge in a gun or the fuel in a rocket 2. (Physics / General Physics) the gas used to carry the liquid droplets in an aerosol spray pro•pel•lant (prəˈpɛl ənt) n. 1. a propelling agent. 2. the charge of explosive used to propel the projectile from a gun. 3. a substance, usu. 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]
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