fossil oil

Thesaurus

Noun

1.

fossil oil - a dark oil consisting mainly of hydrocarbonscrude, crude oil, petroleum, rock oil, oilatomic number 6, carbon, C - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compoundsfossil fuel - fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen contentoil - a slippery or viscous liquid or liquefiable substance not miscible with waterresid, residual oil - oil products that remain after petroleum has been distilled