liq"uefied petro'leum gas"
a gas liquefied by compression, consisting of flammable hydrocarbons, as propane and butane, obtained as a by-product from the refining of petroleum or from natural gas: used chiefly as a domestic fuel in rural areas, as an industrial and motor fuel, and in organic synthesis, esp. of synthetic rubber. Also called bottled gas, compressed petroleum gas, LPG, LP gas.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.