Modifiers matching catalyst:

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

Simple categories matching heterogeneous:

• system,
• material,
• network,
• phenomenon,
• reaction,
• matter,
• substrate,
• organs,
• endeavor,
• resource,
• sensor,
• structure,
• acid,
• tissue,
• article,
• property,
• aggregate,
• soil,
• polity,
• gene,
• sector,
• body,
• solid,
• texture,
• atom,
• process,
• part,
• object,
• area,
• deposit,
• component,
• mixture,
• product,
• particle,
• medium,
• client,
• signal,
• condition,
• state,
• assembly,
• nature,
• corpus,
• protein,
• territory,
• construction,
• layer,
• methodology,
• document,
• environment,
• organ,
• commodity,
• dielectric,
• catalysis,
• block,
• polymerization,
• population,
• virus,
• molecule,
• cancer,
• phase,
• symptom,
• entity,
• information,
• behavior,
• polymer,
• content,
• disease,
• impurity,
• element,
• feature,
• data,
• composition,
• culture,
• fluid,
• oxide,
• sediment,
• zone,
• core,
• surface,
• processor,
• membrane,
• substance,
• stone,
• tool,
• support,
• copolymer,
• thing,
• peer,
• group,
• service,
• waste,
• trait,
• catalyst,
• rock,
• solution,
• disorder,
• characteristic,
• fiber,