Definitions
a dark oil consisting mainly of hydrocarbons
Word origin
Learned borrowing from Medieval Latin petroleum. Doublet of petrol.
Used in a sentence
“petroleum-based products”
“Coal and petroleum do not occur hap-hazard in nature, but the aggregate occurrence of each product in any region forms a definite, limited horizon, which, in its continuance, is independent of the bedding plane.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Crude oil”9 letters
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