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petroleum Line breaks: pet¦rol|eum
Pronunciation: /pɪˈtrəʊlɪəm/

Definition of petroleum in English:


[mass noun]
A liquid mixture of hydrocarbons which is present in suitable rock strata and can be extracted and refined to produce fuels including petrol, paraffin, and diesel oil; oil.
Example sentences
  • Liquid paraffin is a mixture of liquid hydrocarbons obtained from petroleum.
  • Benzene is a colorless and highly flammable liquid hydrocarbon derived from petroleum.
  • Eocene formations are important source or reservoir rocks for petroleum or gas in several parts of the world.


Late Middle English: from medieval Latin, from Latin petra 'rock' (from Greek) + Latin oleum 'oil'.

Words that rhyme with petroleum

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