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

• permanent press
• permanent tooth
• permanent wave
• permanent way
• permanently
• permanganate
• permanganate of potash
• permanganic acid
• permeability
• permeable
• permeableness
• permeance
• permeant
• permeate
• Musgu
• mush
• musher
• mushiness
• mushroom
• mushroom anchor
• mushroom cloud
• mushroom coral
• mushroom pimple
• mushroom poisoning
• mushroom sauce