Modifiers matching contaminant:

• loose,
• airborne,
• harmful,
• damaging,
• endogenous,
• foreign,
• inorganic,
• semisolid,
• salt,
• harmless,
• aqueous,
• organic,
• several,
• molecular,
• environmental,
• combustible,
• new,
• persistent,
• natural,
• biologic,
• important,
• active,
• ordinary,
• modern,
• chemical,
• radioactive,
• cationic,
• waterborne,
• experimental,
• individual,
• solid,
• liquid,
• carcinogenic,
• interfering,
• common,
• animal,
• extraneous,
• pure,
• floating,
• dietary,
• anthropogenic,
• insoluble,
• ferromagnetic,
• noncombustible,
• ambient,
• everyday,
• carbonaceous,
• undesired,
• fluid,
• over,
• dry,
• surrounding,
• basic,
• gross,
• excessive,
• visible,
• soft,
• non-metallic,
• clean,
• ionic,
• unacceptable,
• unique,
• metal,
• conventional,
• ic,
• granular,
• size,
• multiple,
• detrimental,
• fine,
• corrosive,
• irritating,
• metallic,
• harsh,
• exogenous,
• structural,
• numerous,
• polymeric,
• critical,
• sticky,
• oleophilic,
• regulated,
• toxic,
• single,
• deadly,
• level,
• mechanical,
• biodegradable,
• unsightly,
• indoor,
• greasy,
• magnetic,
• unusual,
• urban,
• charged,
• conservative,
• first,
• alkaline,
• hazardous,
• incidental,
• reactive,
• miscellaneous,
• poisonous,
• unpleasant,
• stable,
• volatile,
• particulate,
• up,
• heavy,
• minor,
• off,
• abundant,
• diverse,
• coarse,
• energetic,
• physical,
• minute,
• usual,
• polar,
• moving,
• biological,
• lightweight,
• nonmetallic,
• microbial,
• dermal,
• smaller,
• unwanted,
• dangerous,
• lipophilic,
• possible,
• local,
• refractory,
• viscous,
• colloidal,
• mobile,
• heavier,
• invisible,
• caustic,
• domestic,
• suspended,
• dissolved,
• separate,
• hydrophobic,
• dense,
• gaseous,
• small,
• major,
• larger,
• stubborn,
• siliceous,
• key,
• opaque,
• atmospheric,
• nonpolar,
• elemental,
• additional,
• radiological,
• ferrous,
• microscopic,
• intracellular,
• acidic,
• external,
• fibrous,
• oily,
• finer,
• industrial,
• removable,
• potential,
• noninfectious,
• undesirable,
• inedible,
• deleterious,
• slippery,
• accidental,
• outside,
• mental,
• related,
• abrasive,
• synthetic,
• large,
• familiar,
• unbound,
• world,
• tough,
• nasty,
• unhealthy,
• passive,
• unexpected,
• model,
• soluble,
• secondary,
• hard,
• hydrophilic,
• residual,
• conductive,
• typical,
• anionic,
• noxious,
• meteorological,
• concrete,
• lighter,
• outdoor,
• agricultural,
• unseen,
• difficult,
• out,
• traditional,
• light,

Simple categories matching exogenous:

• substance,
• carcinogen,
• enzyme,
• agent,
• occurrence,
• substrate,
• ligand,
• event,
• steroid,
• base,
• pathogen,
• retrovirus,
• compound,
• solute,
• amphetamine,
• macromolecule,
• contaminant,
• material,
• food,
• authority,
• acceptor,
• force,
• demand,
• carbohydrate,
• sterol,
• variable,
• development,
• inducer,
• poison,
• cause,
• antigen,
• issue,
• buffer,
• chemical,
• glucocorticoid,
• disturbance,
• activator,
• catecholamine,
• proteinase,
• component,
• hormone,
• opiate,
• protein,
• stimulus,
• alteration,
• cytokine,
• toxicant,
• inhibitor,
• asthma,
• change,
• shock,
• signal,
• toxin,
• condition,
• phosphoprotein,
• opsonin,
• hexose,
• process,
• amine,
• dna,
• source,
• estrogen,
• input,
• factor,
• drug,
• intoxicant,
• system,
• antioxidant,
• particle,
• precursor,
• sugar,
• cofactor,
• corticosteroid,
• control,
• polysaccharide,
• acid,
• molecule,
• metal,
• phenomenon,
• stimulant,
• protease,