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Definitions of gas
  1. noun
    a fossil fuel in the gaseous state; used for cooking and heating homes

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  2. 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

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  3. noun
    a state of excessive gas in the alimentary canal

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  4. 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

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  5. noun
    a pedal that controls the throttle valve
    "he stepped on the gas"
  6. verb
    show off
  7. noun
    a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
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  8. verb
    attack with gas; subject to gas fumes
    "The despot gassed the rebellious tribes"
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Definition that contains gas
  • exhaust gases ejected from an engine as waste products
  • fumes gases ejected from an engine as waste products
  • napalm gasoline jelled with aluminum soaps; highly incendiary liquid used in fire bombs and flamethrowers
  • mollusca gastropods; bivalves; cephalopods; chitons
  • phylum mollusca gastropods; bivalves; cephalopods; chitons
  • unleaded petrol gasoline that has not been treated with a lead compound
  • nitrochloromethane gaseous form of chloropicrin used as tear gas
  • opisthobranchia gastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares
  • leaded gasoline gasoline treated with a lead compound to reduce motor knocks
  • acute gastritis gastritis caused by ingesting an irritant (as too much aspirin)
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