Noun Concept
Categories: All articles needing additional references, Wikipedia articles incorporating a citation from the 1911 Encyclopaedia Britannica with Wikisource reference, Chemical mixtures, Glassforming liquids and melts, Petroleum
petroleum  crude oil  oil  crude  fossil oil
A dark oil consisting mainly of hydrocarbons WordNet 3.0
Petroleum, also called crude oil or just oil, is a naturally occurring, yellowish-black liquid found in geological formations beneath the Earth's surface. Wikipedia
Naturally occurring flammable liquid Wikidata
A comparatively volatile liquid bitumen composed principally of hydrocarbon, with traces of sulphur, nitrogen or oxygen compounds; can be removed from the earth in a liquid state. OmegaWiki
Oil which derives from petroleum and is made up of hydrocarbons. OmegaWiki
Crude oil. Wiktionary
Unrefined oil; as it is found underground, consisting mainly of hydrocarbons. Wiktionary
Unrefined oil. Wiktionary (translation)
Petroleum-based liquid used as fuel or lubricant. Wiktionary
Petroleum-based liquid. Wiktionary (translation)
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. Wiktionary