Modifiers matching constituent:

• significant,
• organic,
• chemical,
• available,
• extraneous,
• toxic,
• intestinal,
• ionic,
• explosive,
• macromolecular,
• dietary,
• essential,
• base,
• major,
• inorganic,
• light,
• smaller,
• alternative,
• harsh,
• sensitive,
• effective,
• atmospheric,
• costly,
• hazardous,
• cellular,
• deleterious,
• characteristic,
• dissolved,
• compositional,
• morphological,
• hydrophobic,
• therapeutic,
• additional,
• acid,
• neutral,
• acidic,
• metabolic,
• antigenic,
• nutritive,
• medium,
• useful,
• dense,
• hard,
• dermal,
• grammatical,
• damaging,
• fungal,
• aggregate,
• heavier,
• potential,
• biologic,
• anatomic,
• extractable,
• miscellaneous,
• protective,
• anionic,
• individual,
• phrasal,
• dangerous,
• stable,
• gaseous,
• passive,
• noble,
• biliary,
• conventional,
• soluble,
• single,
• mental,
• nonpolar,
• external,
• functional,
• elementary,
• biological,
• corrosive,
• vital,
• benign,
• atomic,
• reactive,
• heavy,
• nontoxic,
• biomedical,
• diverse,
• suspended,
• polar,
• charged,
• magnetic,
• physiological,
• secondary,
• common,
• typical,
• refractory,
• fluid,
• unexpected,
• unusual,
• skeletal,
• structural,
• airborne,
• valuable,
• polyatomic,
• conductive,
• concrete,
• brittle,
• salt,
• palatable,
• manufactured,
• cereal,
• labile,
• bitter,
• plastic,
• inert,
• key,
• anatomical,
• minor,
• alkaline,
• medicinal,
• hydrophilic,
• noxious,
• digestible,
• natural,
• abundant,
• main,
• catalytic,
• nonfat,
• residual,
• dry,
• fundamental,
• interfering,
• logical,
• metal,
• linguistic,
• environmental,
• critical,
• porous,
• recoverable,
• intracellular,
• recyclable,
• number,
• insoluble,
• colored,
• rare,
• urinary,
• architectural,
• endogenous,
• beneficial,
• harmless,
• animal,
• symbolic,
• liquid,
• nuclear,
• indigestible,
• powdered,
• heterocyclic,
• propellant,
• metallic,
• absorbent,
• odorous,
• undesirable,
• nutritional,
• harmful,
• electronegative,
• colloidal,
• biochemical,
• mobile,
• aromatic,
• small,
• exotic,
• dispersive,
• desirable,
• bacterial,
• physical,
• simple,
• elemental,
• active,
• incombustible,
• regulated,
• lighter,
• earthy,
• radioactive,
• large,
• phonological,
• basic,
• new,
• nutritious,
• crystalline,
• expensive,
• inexpensive,
• important,
• level,
• psychoactive,
• indispensable,
• volatile,
• abstract,
• primary,
• noncombustible,
• molecular,
• minute,
• solid,
• syntactic,
• larger,
• salivary,
• unwanted,

Simple categories matching heterocyclic:

• group,
• phosphate,
• atom,
• system,
• base,
• polymer,
• constituent,
• substrate,
• chemical,
• compound,
• aldehyde,
• acid,
• amine,