This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. Something, such as an explosive charge or a rocket fuel, that propels or provides thrust.

n. A compressed inert gas, such as a fluorocarbon, that acts as a vehicle for discharging the contents of an aerosol container.

adj. Serving to propel; propelling.

n. anything that propels

n. fuel, oxidizer, reaction mass or mixture for one or more engines (especially internal combustion engines or jet engines) that is carried within a vehicle prior to use

n. the compressed gas in a pressurised container (especially an aerosol can) that is used to expel a liquid

adj. Alternative spelling of propellent.

n. That which propels or drives forward; a propelling agent.

n. any substance that propels

adj. tending to or capable of propelling

"A modest fuel depot in orbit based upon existing upper stages would allow for the separation of propellant from the payload, and allow for easy segmentation of the total mass of a lunar launch."

dynamic    dynamical   

repellent    water-repellent   

gunpowder    fuel    explosive    booster    gasoline    rocket    hydrogen    primer    fuse    antimatter