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

Type of: fossil fuel, oil

• protractile
• protraction
• protractive
• protractor
• protriptyline
• Protropin
• protrude
• protruding
• protrusible
• protrusile
• protrusion
• protrusive
• protuberance
• protuberant
• protuberate
• Protura
• proturan
• protégé
• protégée
• proud
• proud flesh
• proud of
• Proudhon
• proudly
• Proust