Modifiers matching catalyst:

• suitable,
• metal,
• biological,
• complex,
• appropriate,
• traditional,
• related,
• precious,
• macromolecular,
• enzymatic,
• solid,
• optical,
• liquid,
• acid,
• acidic,
• ferromagnetic,
• expensive,
• single,
• natural,
• diverse,
• active,
• heterogeneous,
• cheap,
• metallic,
• homogeneous,
• auxiliary,
• granular,
• base,
• basic,
• common,
• usual,
• volatile,
• proteinaceous,
• extraneous,
• chemical,
• strong,
• cationic,
• soluble,
• environmental,
• possible,
• major,
• useful,
• conventional,
• external,
• cultural,
• heavy,
• benign,
• necessary,
• alternative,

Simple categories matching cationic:

• material,
• drug,
• chemical,
• metal,
• carrier,
• contaminant,
• medication,
• salt,
• substance,
• reactant,
• catalyst,
• polymer,
• compound,
• anaesthetic,
• component,
• antibiotic,
• system,
• anesthetic,
• marker,
• current,
• group,
• mineral,
• ion,
• surfactant,
• agent,
• ligand,
• antiseptic,
• lipid,