petroleum

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petroleum

 [pĕ-tro´le-um]
a thick natural oil obtained from beneath the earth. It consists of a mixture of various hydrocarbons of the paraffin and olefin series.

pe·tro·le·um

(pĕ-trō'lē-ŭm),
A mixture of liquid hydrocarbons found in the earth in various parts of the world and believed to be derived from fossilized animal and plant remains; the source of petrolatum, in addition to its use for lighting and heating purposes.
Synonym(s): coal oil, rock oil
[L. petra, rock, + oleum, oil]

pe·tro·le·um

(pĕ-trō'lē-ŭm)
A mixture of liquid hydrocarbons found in the earth in various parts of the world believed to be derived from fossilized animal and plant remains.
[L. petra, rock, + oleum, oil]