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solid propellant

a rocket propellant in solid form, usually containing a mixture or combination of fuel and oxidizer. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for solid propellant
  • But if you use a rocket engine with solid propellant, it will feel hot.
  • The small solid propellant igniter in each booster ignites the propellant at launch.

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