1. A dark oil consisting mainly of hydrocarbons
   - petroleum, crude oil, crude, fossil oil, oil, black gold

Type of: fossil fuel, oil

Encyclopedia: Rock oil

• fast-growing
• fast-paced
• fast-talk
• fastback
• fastball
• fasten
• fasten on
• fastened
• fastener
• fastening
• faster
• fastest
• fastidious
• fastidiously
• fastidiousness
• fastigiate
• fasting
• fastly
• fastnacht
• fastness
• fastuous
• fat
• fat cat
• fat cell
• fat chance