fossil oil

/ˌfɑsəl ɔɪl/
IPA guide

Other forms: fossil oils

Definitions of fossil oil
  1. noun
    a dark oil consisting mainly of hydrocarbons
    synonyms: crude, crude oil, oil, petroleum, rock oil
    see moresee less
    types:
    resid, residual oil
    oil products that remain after petroleum has been distilled
    type of:
    fossil fuel
    fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
    oil
    a slippery or viscous liquid or liquefiable substance not miscible with water
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