Propellant
WordNet
adjective
(1) Tending to or capable of propelling
"Propellant fuel for submarines"
"The faster a jet plane goes the greater its propulsive efficiency"
"Universities...the seats of propulsive thought"
noun
(2) Something that propels
WiktionaryText
Noun
- anything that propels
- 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
- the compressed gas in a pressurised container (especially an aerosol can) that is used to expel a liquid