Modifiers matching residue:

• larger,
• agricultural,
• hydrophobic,
• liquid,
• fresh,
• stubborn,
• organic,
• coarse,
• flexible,
• basic,
• common,
• biochemical,
• solid,
• dried,
• hygroscopic,
• toxic,
• multiple,
• chemical,
• poor,
• refractory,
• heavier,
• neutral,
• polar,
• harmless,
• greasy,
• charged,
• insoluble,
• nonmetallic,
• bulky,
• fine,
• antibiotic,
• penultimate,
• infectious,
• nonpolar,
• smaller,
• woody,
• heavy,
• viscous,
• abundant,
• alkaline,
• inert,
• botanical,
• crystalline,
• undesirable,
• dry,
• aliphatic,
• iron,
• off,
• hydrophilic,
• carcinogenic,
• miscellaneous,
• key,
• compressible,
• powdery,
• volatile,
• animal,
• lipophilic,
• hard,
• industrial,
• useful,
• functional,
• particulate,
• unwanted,
• fibrous,
• vegetative,
• undesired,
• biological,
• structural,
• valuable,
• possible,
• metallic,
• cheap,
• acid,
• automotive,
• noxious,
• interfering,
• inorganic,
• polymeric,
• sensitive,
• acidic,
• electronegative,
• conventional,
• large,
• inexpensive,
• aromatic,
• hazardous,
• tough,
• dietary,
• urban,
• sticky,
• wet,
• reactive,
• fatty,
• soluble,
• explosive,
• light,
• visible,
• combustible,
• uncharged,
• allergenic,
• unrefined,
• finer,
• clean,
• small,
• loose,
• harmful,
• essential,
• carbonaceous,
• side,
• internal,
• active,
• binding,
• major,
• nonvolatile,
• corrosive,
• herbaceous,
• oily,
• dangerous,

Simple categories matching refractory:

• grain,
• metal,
• molecule,
• particle,
• material,
• oxide,
• cement,
• conductor,
• shield,
• fraction,
• lining,
• surface,
• compound,
• carbide,
• mineral,
• item,
• shape,
• fiber,
• aggregate,
• property,
• matter,
• constituent,
• macromolecule,
• rock,
• fabric,
• ore,
• wire,
• component,
• substance,
• alloy,
• silicide,
• residue,
• body,
• phosphate,
• powder,
• fibre,
• vessel,
• earth,
• product,
• part,
• article,
• membrane,
• complex,
• element,
• contaminant,
• brick,
• clay,
• system,
• substrate,
• coating,
• solid,
• filling,
• medium,
• nonmetal,
• carrier,
• elements,
• nitride,
• filler,