Modifiers matching acid:

• aggressive,
• cyclic,
• fatty,
• organic,
• aromatic,
• basic,
• nonvolatile,
• preservative,
• dangerous,
• dissolved,
• polyunsaturated,
• neutral,
• weak,
• natural,
• inorganic,
• lipophilic,
• strong,
• liquid,
• nontoxic,
• extra,
• oxidizable,
• unsaturated,
• carboxylic,
• metabolic,
• small,
• simple,
• little,
• common,
• acid,
• solid,
• volatile,
• amino,
• gaseous,
• mild,
• aqueous,
• unwanted,
• saturated,
• hydrophobic,
• poisonous,
• possible,
• polymeric,
• additional,
• heterogeneous,
• aliphatic,
• heterocyclic,
• edible,
• exogenous,
• cellular,
• conventional,
• dietary,
• acetic,
• heavy,
• ordinary,
• corrosive,
• popular,
• free,
• nitrogenous,
• endogenous,
• base,
• useful,
• accessible,
• safe,
• industrial,
• agricultural,
• monounsaturated,
• hydrophilic,
• wholesome,
• soft,
• unusual,
• wet,
• hard,
• monovalent,
• digestive,
• phosphorous,
• active,
• acidic,
• relevant,
• hydroxy,
• available,
• essential,
• chemical,
• monocarboxylic,

Simple categories matching exogenous:

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