#fluid.substance a continuous amorphous substance that tends to flow and to conform to the outline of its container: a liquid or a gas
supertype: substance__matter that which has mass and occupies space; "an atom is the smallest indivisible unit of matter"
subtype: gas a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
subtype: atmosphere.gas the envelope of gases surrounding any celestial body
subtype: noble_gas__noblega__inert_gas__inertga any of the chemically inert gaseous elements of the helium group in the periodic table
subtype: argon__ar__atomic_number_18 a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere
subtype: helium__He__atomic_number_2 a very light colorless element that is one of the six inert gasses; the most difficult gas to liquefy; occurs in economically extractable amounts in certain natural gases (as those found in Texas and Kansas)
subtype: krypton__Kr a colorless element that is one of the six inert gasses; occurs in trace amounts in air
subtype: neon__Ne__atomic_number_10 a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
subtype: radon__Rn__atomic_number_86 a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health
subtype: xenon__Xe__atomic_number_54 a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts
subtype: chlorine__Cl__atomic_number_17 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)
subtype: radiochlorine a radioactive isotope of chlorine
subtype: fluorine__F__atomic_number_9__atomicnumber9 a nonmetallic univalent element; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
subtype: hydrogen__H__atomic_number_1__atomicnumber1 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
subtype: tritium a radioactive isotope of hydrogen; atoms of tritium have three times the mass of ordinary hydrogen atoms
subtype: nitrogen__N__atomic_number_7 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
subtype: azote an obsolete name for nitrogen
subtype: liquid_nitrogen nitrogen in a liquid state
subtype: oxygen__O__atomic_number_8 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
subtype: liquid_oxygen__LOX a bluish transparent magnetic liquid obtained by compressing gaseous oxygen; used as an oxidizer in rocket propellants
subtype: plasma.gas an electrically neutral ionized gas in an electric discharge; distinctly different from solids and liquids and normal gases
subtype: interplanetary_gas a rarefied flow of gas and charged particles (plasma) that stream from the sun and form the solar wind
subtype: butane occurs in natural gas; used in the manufacture of rubber and fuels
subtype: propane colorless gas found in natural gas and petroleum; used as a fuel
subtype: afterdamp a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine
subtype: firedamp a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air
subtype: arsine a poisonous colorless flammable gas used in organic synthesis and to dope transistors and as a poison gas in warfare
subtype: nitrogen_dioxide a highly poisonous brown gas (NO2)
subtype: nitric_oxide a poisonous red-brown gas (NO)
subtype: blow_gas__blowing_gas__blowingga the gas leaving a generator during a blow period
subtype: butylene__butene any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers
subtype: isobutylene used also in making gasoline components
subtype: polybutylene__polybutene a polymer of butylene; used in lubricants and synthetic rubber
subtype: cyanogen a colorless toxic gas with a pungent almond odor; has been used in chemical warfare
subtype: exhaust_fumes__exhaustfume__fumes gases ejected from an engine as waste products
subtype: air a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need some fresh air"
subtype: breath.air the air that is inhaled and exhaled in respiration; "his sour breath offended her"
subtype: halitus exhaled breath
subtype: halitosis offensive breath
subtype: liquid_air air in a liquid state
subtype: compressed_gas gas at a high pressure that can be used as a propellant
subtype: compressed_air air at a pressure greater than that of the atmosphere; "compressed air is often used to power machines"
subtype: air_cushion the trapped air that supports a hovercraft a short distance above the water or ground
subtype: ethane a colorless odorless gas used as fuel
subtype: ethylene__ethene a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic
subtype: producer_gas__air_gas__airga a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke
subtype: formaldehyde__methanal a colorless poisonous gas; made by the oxidation of methanol
subtype: liquefied_petroleum_gas__bottled_gas hydrocarbon gases, usually propane or butane, kept under pressure
subtype: water_gas a mixture of hydrogen and carbon monoxide with small amounts of other gases; made by blowing steam over hot coke or coal
subtype: ideal_gas__idealga__perfect_gas__perfectga a hypothetical gas with molecules of negligible size that exert no intermolecular forces
subtype: inhalant.gas something that is inhaled
subtype: methane a colorless odorless gas used as a fuel
subtype: marsh_gas__marshga methane gas produced when vegetation decomposes in water
subtype: 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)
subtype: phosgene a colorless poisonous gas that smells like new-mown hay; used in chemical warfare
subtype: phosphine a colorless gas with a strong fishy smell; used as a pesticide
subtype: poison_gas (chemical warfare) a gas that is poisonous to breath or contact
subtype: mustard_gas__mustardga__dichloroethyl_sulfide__dichloroethylsulfide__sulfur_mustard a toxic war gas that raises blisters and attacks the eyes and lungs
subtype: nerve_gas__nervega a toxic war gas that is inhaled or absorbed through the skin and has harmful effects on the nervous and respiratory system
subtype: propylene__propene a flammable gas obtained by cracking petroleum; used in organic synthesis
subtype: sewer_gas__sewerga foul-smelling gas that forms in sewers
subtype: sublimate the product of vaporization of a solid
subtype: mercuric_chloride__mercury_chloride__mercurychloride__bichlorideofmercury__corrosive_sublimate a white poisonous soluble crystalline sublimate of mercury; used as a pesticide or antiseptic or wood preservative
subtype: sulfur_dioxide__sulphur_dioxide__sulphurdioxide a toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions
subtype: tear_gas__lacrimator__lachrymator a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds
subtype: nitrochloromethane gaseous form or chloropicrin used as tear gas
subtype: ichor (Greek mythology) the rarified fluid said to flow in the veins of the Gods
subtype: liquid.fluid a substance in the fluid state of matter having no fixed shape but a fixed volume
subtype: artificial_blood a liquid that can carry large amounts of oxygen and can serve as a temporary substitute for blood
subtype: elixir.liquid a sweet flavored liquid (usually containing a small amount of alcohol) used in compounding medicines to be taken by mouth in order to mask an unpleasant taste
subtype: water__H2O binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; "he asked for a drink of water"
subtype: tap_water__tapwater water directly from the spigot
subtype: drinking_water water suitable for drinking
subtype: bottled_water__bottledwater drinking water (often spring water) that is put into bottles and offered for sale
subtype: branch_water pure natural water from a stream or brook; often distinguished from soda water
subtype: spring_water water from a spring
subtype: sugar_water__sugarwater water sweetened with sugar
subtype: ice_water__icewater water served ice-cold or with ice
subtype: soda_water__carbonated_water__club_soda__seltzer__sparkling_water__sparklingwater effervescent beverage artificially charged with carbon dioxide
subtype: mineral_water__mineralwater water naturally or artificially impregnated with mineral salts or gasses; often effervescent; often used therapeutically
subtype: seltzer naturally effervescent mineral water
subtype: Vichy_water sparkling mineral water from springs at Vichy France or similar to it
subtype: lithia_water mineral water containing lithium salts
subtype: bath_water water used for a bath
subtype: dishwater water in which dishes and cooking utensils are washed
subtype: distilled_water water that has been purified by distillation
subtype: holy_water water that has been blessed by a priest for use in symbolic purification
subtype: ground_water__spring_water__well_water underground water that is held in the soil and in pervious rocks
subtype: hard_water water that contains salts that prevent the formation of lather with soap
subtype: limewater solution of calcium hydroxide in water used as an antacid
subtype: seawater__saltwater__brine water containing salts; "the water in the ocean is all saltwater"
subtype: red_tide__redtide seawater that is discolored by large numbers of certain dinoflagellates that produce saxitoxin
subtype: fresh_water__freshwater water that is not salty
subtype: rain__rainwater drops of fresh water that fall as precipitation from clouds
subtype: slush partially melted snow
subtype: soft_water water that is not hard (does not contain salts that interfere with the formation of lather with soap)
subtype: bilge_water__bilge water accumulated in the bilge of a ship
subtype: water_of_crystallization__water_of_hydration the water present in hydrated compounds
subtype: liquid_crystal a liquid exhibiting properties of a crystal that are not shown by ordinary liquids
subtype: Chemical_Mace__Mace (trademark) a liquid that temporarily disables a person; prepared as an aerosol and sprayed in the face, it irritates the eyes and causes dizziness and immobilization
subtype: spill.liquid liquid that is spilled; "clean up the spills"
subtype: tuberculin a sterile liquid containing a purified protein derivative of the tuberculosis bacterium; used in the diagnosis of tuberculosis
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