A mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.
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 explosive (cordite, gunpowder, etc) found in ammunition cartridges
the compressed gas in a pressurised container (especially an aerosol can) that is used to expel its content