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

Type of: fossil fuel, oil

• catarrhal fever
• catarrhine
• catarrhinian
• Catasetum
• Catasetum macrocarpum
• catastrophe
• catastrophe theory
• catastrophic
• catastrophic illness
• catastrophically
• catastrophism
• catatonia
• catatonic
• catatonic schizophrenia
• catatonic type schizophrenia
• Catawba
• catbird
• catboat
• catbrier
• catcall
• catch
• catch a glimpse
• catch a wink
• catch cold
• catch crop