petroleum

Meaning

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.

Frequency

C2
Pronounced as (IPA)
/pəˈtɹoʊliəm/
Etymology

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

Notes

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