US and Canadian name: gasoline 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
1895, "gasoline," from Fr. pétrol (1892); earlier used (1585) in ref. to the unrefined substance, from M.Fr. petrole "petroleum," from O.Fr. (13c.), from M.L. petroleum (see petroleum).