fossil fuel

fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period v

n fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period n a hot fragment of wood or coal that is left from a fire and is glowing or smoldering v burn to charcoal v supply with coal v take in coal

used mainly as a fuel in internal-combustion engines n a state of excessive gas in the alimentary canal n a pedal that controls the throttle valve n a fossil fuel in the gaseous state