(US & Canadian) any one of various volatile flammable liquid mixtures of hydrocarbons, mainly hexane, heptane, and octane, obtained from petroleum and used as a solvent and a fuel for internal-combustion engines. Usually petrol also contains additives such as antiknock compounds and corrosion inhibitors Also called (esp in Britain) petrol
(gās'ə-lēn') A highly flammable mixture of liquid hydrocarbons that are derived from petroleum. The hydrocarbons in gasoline contain between five and eight carbon atoms. Gasoline is used as a fuel for internal-combustion engines in automobiles, motorcycles, and small trucks.