■ noun a hydrocarbon oil found in suitable rock strata and extracted and refined to produce fuels including petrol, paraffin, and diesel oil; oil.
Origin
ME: from med. L., from L. petra 'rock' (from Gk) + L. oleum 'oil'.
■ noun a hydrocarbon oil found in suitable rock strata and extracted and refined to produce fuels including petrol, paraffin, and diesel oil; oil.
Origin
ME: from med. L., from L. petra 'rock' (from Gk) + L. oleum 'oil'.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004