petroleum

See also: Petroleum

English

Alternative forms

Etymology

From Medieval Latin petroleum, from petra (“rock”) + oleum (“oil”).

Pronunciation
  • Audio (US)(file)

Noun

petroleum (plural petroleums or petrolea)

  1. a flammable liquid ranging in color from clear to very dark brown and black, consisting mainly of hydrocarbons, occurring naturally in deposits under the Earth's surface
    Synonyms: crude oil, oil

Derived terms

Translations
oil — see oil
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