gas

Noun
  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 (synset 114504664)
    is a type of: state, state of matter - (chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids (fixed volume and shaped by the container) and gases (filling the container)
    same as: gaseous state
  2. A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely (synset 114901736)
    is a type of: fluid - continuous amorphous matter that tends to flow and to conform to the outline of its container: a liquid or a gas
    subtypes:
    • atmosphere - the envelope of gases surrounding any celestial body
    • argonon, inert gas, noble gas - any of the chemically inert gaseous elements of the helium group in the periodic table
    • atomic number 17, chlorine, cl - a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
    • atomic number 9, f, fluorine - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
    • atomic number 1, h, hydrogen - a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
    • atomic number 7, n, nitrogen - a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
    • atomic number 8, o, oxygen - a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
    • butane - occurs in natural gas; used in the manufacture of rubber and fuels
    • propane - colorless gas found in natural gas and petroleum; used as a fuel
    • afterdamp - a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine
    • firedamp - a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
    • arsine - a poisonous colorless flammable gas used in organic synthesis and to dope transistors and as a poison gas in warfare
    • nitrogen dioxide - a highly poisonous brown gas (NO2)
    • nitric oxide - a poisonous red-brown gas (NO)
    • blow gas, blowing gas - the gas leaving a generator during a blow period
    • butene, butylene - any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
    • cyanogen - a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
    • exhaust, exhaust fumes, fumes - gases ejected from an engine as waste products
    • air - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of
    • compressed gas - gas at a high pressure that can be used as a propellant
    • ethene, ethylene - a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
    • air gas, producer gas - a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke
    • formaldehyde, methanal - a colorless poisonous gas; made by the oxidation of methanol
    • greenhouse emission, greenhouse gas - a gas that contributes to the greenhouse effect by absorbing infrared radiation
    • bottled gas, liquefied petroleum gas - hydrocarbon gases, usually propane or butane, kept under pressure
    • water gas - a mixture of hydrogen and carbon monoxide with small amounts of other gases; made by blowing steam over hot coke or coal
    • ideal gas, perfect gas - a hypothetical gas with molecules of negligible size that exert no intermolecular forces
    • inhalant - something that is inhaled
    • methane - a colorless odorless gas used as a fuel
    • ozone - a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
    • phosgene - a colorless poisonous gas that smells like new-mown hay; used in chemical warfare
    • phosphine - a colorless gas with a strong fishy smell; used as a pesticide
    • poison gas - a gas that is poisonous to breath or contact; used in chemical warfare
    • propene, propylene - a flammable gas obtained by cracking petroleum; used in organic synthesis
    • mephitis - a poisonous or foul smelling gas emitted from the earth
    • sewer gas - foul-smelling gas that forms in sewers
    • sublimate - the product of vaporization of a solid
    • sulfur dioxide, sulphur dioxide - a colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions; causes acid rain
    • lachrymator, lacrimator, tear gas, teargas - a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds
  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 (synset 114711074)
    is a type of:
    • fuel - a substance that can be consumed to produce energy
    • hydrocarbon - an organic compound containing only carbon and hydrogen
    subtypes:
    substance meronym: gasohol - a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn
    same as: gasolene, gasoline, petrol
  4. A state of excessive gas in the alimentary canal (synset 114059177)
    is a type of: physical condition, physiological condition, physiological state - the condition or state of the body or bodily functions
    same as: flatulence, flatulency
  5. A pedal that controls the throttle valve (synset 102673313)
    "he stepped on the gas"
    is a type of: foot lever, foot pedal, pedal, treadle - a lever that is operated with the foot
    is a part of:
    same as: accelerator, accelerator pedal, gas pedal, gun, throttle
  6. A fossil fuel in the gaseous state;
    Used for cooking and heating homes (synset 114984229)
    is a type of: fossil fuel - fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
    substance holonym: methane - a colorless odorless gas used as a fuel
    same as: natural gas
Verb
  1. Attack with gas;
    Subject to gas fumes (synset 201127799)
    "The despot gassed the rebellious tribes"
    is a type of: assail, attack - launch an attack or assault on; begin hostilities or start warfare with
    subtypes: teargas - attack with teargas; subject to teargas fumes
  2. Show off (synset 200884747)
    is a type of: amplify, exaggerate, hyperbolise, hyperbolize, magnify, overdraw, overstate - to enlarge beyond bounds or the truth
    subtypes:
    same as: blow, bluster, boast, brag, gasconade, shoot a line, swash, tout, vaunt

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