Modifiers matching gas:

• rare,
• active,
• inert,
• undesirable,
• invisible,
• extraneous,
• passive,
• special,
• abundant,
• combustible,
• pure,
• essential,
• biogenic,
• noble,
• separate,
• harmless,
• nonpolar,
• miscellaneous,
• model,
• toxic,
• explosive,
• airborne,
• dense,
• benign,
• diatomic,
• edible,
• convenient,
• common,
• flammable,
• under,
• available,
• hot,
• warming,
• ordinary,
• industrial,
• atmospheric,
• monatomic,
• light,
• interfering,
• starting,
• rarefied,
• malodorous,
• incoming,
• inflammable,
• hazardous,
• obnoxious,
• heated,
• oxidizable,
• medicinal,
• cold,
• radioactive,
• fixed,
• external,
• dusty,
• unsaturated,
• soluble,
• hydrophobic,
• surrounding,
• major,
• medical,
• harmful,
• dissolved,
• particular,
• supercritical,
• stable,
• identifiable,
• divalent,
• dilute,
• suitable,
• suffocating,
• alkaline,
• raw,
• paramagnetic,
• transparent,
• beneficial,
• saturated,
• acid,
• polar,
• safe,
• base,
• unique,
• number,
• heavier,
• key,
• sulfurous,
• inexpensive,
• damaging,
• indoor,
• small,
• hydrophilic,
• respiratory,
• permanent,
• aggressive,
• tenuous,
• dangerous,
• organic,
• elemental,
• chemical,
• artificial,
• metal,
• diffusing,
• relevant,
• important,
• classical,
• dry,
• desirable,
• ionic,
• supplemental,
• strong,
• conventional,
• mixed,
• faster,
• injurious,
• electropositive,
• automotive,
• single,
• buoyant,
• frozen,
• familiar,
• critical,
• unstable,
• ignitable,
• luminous,
• expensive,
• irritating,
• basic,
• electronegative,
• innocuous,
• cryogenic,
• relativistic,
• heavy,
• malign,
• refrigerated,
• scientific,
• compressible,
• ambient,
• deadly,
• natural,
• moving,
• deleterious,
• incombustible,
• diamagnetic,
• rich,
• out,
• working,
• reactive,
• manufactured,
• noxious,
• conductive,
• cheap,
• floating,
• thin,
• liquified,
• refrigerant,
• foreign,
• impure,
• off,
• volatile,
• warm,
• unwanted,
• carbonaceous,
• absorptive,
• traditional,
• carcinogenic,
• synthetic,
• commercial,
• molecular,
• secondary,
• nontoxic,
• lightweight,
• controlled,
• monoatomic,
• nonflammable,
• individual,
• weak,
• minor,
• standard,
• consumable,
• noncombustible,
• compressed,
• metabolic,
• supportive,
• auxiliary,
• insoluble,
• popular,
• liquid,
• atomic,
• complex,
• technical,
• liquefied,
• anthropogenic,
• valuable,
• acidic,
• poisonous,
• vesicant,
• detrimental,
• additional,
• neutral,
• supporting,
• vital,
• lighter,
• corrosive,
• useful,
• propellant,
• fast,
• mental,
• residual,
• protective,
• inorganic,
• oxidative,
• clean,
• environmental,
• medium,
• real,
• mobile,
• simple,

Simple categories matching atomic:

• instruction,
• system,
• material,
• resonance,
• value,
• element,
• dimension,
• grouping,
• signal,
• crystal,
• property,
• gas,
• particle,
• information,
• component,
• object,
• mass,
• atom,
• constituent,
• process,
• entity,
• interaction,
• control,
• distribution,
• number,
• packing,
• agent,
• structure,
• change,
• aggregate,
• cluster,
• event,
• unit,
• substance,
• layer,
• attribute,
• hydrogen,
• solid,
• composition,
• weight,
• target,
• transport,
• force,
• surface,
• fluid,
• level,
• bond,
• motion,
• ligand,
• group,
• research,
• metal,
• isotope,
• oxygen,
• physics,
• operations,
• thing,
• matter,
• liquid,
• imperfection,
• migration,
• medium,
• solute,
• theory,
• values,
• vapor,
• volume,
• core,
• domain,
• feature,
• parameter,
• field,
• position,
• quantity,
• phenomenon,