gas (n.)

  1. 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

    [ Syn: gaseous state ]

  2. a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely

  3. a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines

    [ Syn: gasoline , gasoline , gasolene , gasolene , petrol , petrol ]

  4. a state of excessive gas in the alimentary canal

    [ Syn: flatulence , flatulency ]

  5. a pedal that controls the throttle valve; he stepped on the gas

    [ Syn: accelerator , accelerator pedal , gas pedal , throttle , gun ]

  6. a fossil fuel in the gaseous state; used for cooking and heating homes

    [ Syn: natural gas ]

    gas (v.)

  1. attack with gas; subject to gas fumes; The despot gassed the rebellious tribes'

  2. show off

    [ Syn: boast , tout , swash , shoot a line , brag , blow , bluster , vaunt , gasconade ]

The dictionary is based on the WordNet Electronic Lexical Database.
WordNet 3.0 Copyright 2011 by Princeton University. All rights reserved.