Substance consumed to provide energy through combustion, or through chemical or nuclear reaction.
Substance that provides nourishment for a living organism; food.
Something that stimulates, encourages or maintains an action.
To exacerbate, to cause to grow or become greater.
To provide with fuel.
A mixture of gaseous hydrocarbons associated with petroleum deposits; mostly methane with smaller amounts of ethane, propane and butane; principally used as a fuel.