1. Fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content

Derived forms: fossil fuels

Type of: fuel

Encyclopedia: Fossil fuel

• Office of Management and Budget
• Office of Naval Intelligence
• Office of the Dead
• office staff
• office-bearer
• officeholder
• officer
• officer's mess
• official
• official document
• official emissary
• official immunity
• officialdom
• officialese
• officialise
• officialism
• officialize
• officially
• officiant
• officiate
• officiating
• officiation
• officiator
• officinal
• officious