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petroleum |
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petroleum /pe·tro·le·um/ (pĕ-tro´le-um) a thick natural mixture of gaseous, liquid, and solid hydrocarbons obtained from beneath the surface of the earth. petroleum benzin a colorless, volatile, flammable fraction from petroleum distillation, containing largely hydrocarbons of the methane series; it has been variously described as a special grade of ligroin or as a separate but similar fraction with a lower boiling range. It is used chiefly as an extractive solvent. petroleum a thick natural oil obtained from beneath the earth. It consists of a mixture of various hydrocarbons of the paraffin and olefin series. See crude petroleum oil. petroleum jelly petrolatum. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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