Definition of Petraleum
Petroleum, is the common name of a series of rock oils found in
large quantities in the United States and Canada, near Rangoon, and in
the neighbourhood of the Caspian Sea. The oil issues from the rocks, or
is drawn from subterranean reservoirs, where its presence is supposed to
result from natural distillation of vegetable and animal substances, and
after refining, put in the market as benzoline, paraffin, and lubricating
oil. It is extensively used in the industries, and has been applied as
fuel to steamships.
- Wikipedia
Pe*tro"le*um (?), n. [NL., fr. L.
petra a rock + oleum oil: cf. F. pétrole.
Cf. Petrify, and Oil.] Rock oil, mineral oil, or
natural oil, a dark brown or greenish inflammable liquid, which, at
certain points, exists in the upper strata of the earth, from whence
it is pumped, or forced by pressure of the gas attending it. It
consists of a complex mixture of various hydrocarbons, largely of the
methane series, but may vary much in appearance, composition, and
properties. It is refined by distillation, and the products include
kerosene, benzine, gasoline, paraffin, etc.
Petroleum spirit, a volatile liquid obtained
in the distillation of crude petroleum at a temperature of 170°
Fahr., or below. The term is rather loosely applied to a considerable
range of products, including benzine and ligroin. The terms
petroleum ether, and naphtha, are sometimes applied to
the still more volatile products, including rhigolene, gasoline,
cymogene, etc.
- Webster's Unabridged Dictionary (1913)
- A flammable liquid ranging in colour from clear to very dark brown and black, consisting mainly of hydrocarbons, occuring naturally in deposits under earth surface. Petroleum deposits around the world vary in their chemical makeup. They can refined into fractions of natural gasoline, naphtha, kerosene, fuel oil, wax. asphalt, Gilsonite, petroleum jelly. It is commonly found along with deposits of water and natural gas(such as methane, ethane, propane, and butane).
- The Nuttall Encyclopedia
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