a motor vehicle with four wheels; usually propelled by an internal combustion engine | a pedal that controls the throttle valve |
a wheeled vehicle adapted to the rails of railroad | the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container |
where passengers ride up and down | a state of excessive gas in the alimentary canal |
the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant | a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely |
a conveyance for passengers or freight on a cable railway | a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines |
| a fossil fuel in the gaseous state; used for cooking and heating homes |