noun 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
noun a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
noun a state of excessive gas in the alimentary canal
noun a pedal that controls the throttle valve
noun a fossil fuel in the gaseous state; used for cooking and heating homes
Source: WordNet 3.1, Princeton University
