Category Nuances for null:

• common,
• new,
• important,
• logical,
• older,
• simple,
• familiar,
• antimicrobial,
• significant,
• antibiotic,
• ii,
• modern,
• hydrophobic,
• beneficial,
• old,
• basic,
• anionic,
• topical,
• valuable,
• secondary,
• expensive,
• acidic,
• hydrophilic,
• essential,
• standard,
• exogenous,
• medicinal,
• soluble,
• conventional,
• inexpensive,
• prescribed,
• allergenic,
• foreign,
• antibacterial,
• charged,
• manufactured,
• individual,
• western,
• pharmaceutical,
• vital,
• harmful,
• polar,
• useful,
• oral,
• chemotherapeutic,
• therapeutic,
• powerful,
• safe,
• cationic,
• systemic,
• special,
• benign,
• chemical,
• related,
• traditional,
• single,
• animal,
• microbial,
• fungal,
• commonplace,
• organic,
• effective,
• pharmacological,
• active,
• bactericidal,
• cheap,
• natural,
• potent,
• toxic,
• everyday,
• veterinary,

Simple Categories for null:

• allergen,
• medicine,
• antimicrobial,
• drug,
• antibiotic,
• antibacterial,
• metabolite,
• medication,
• substance,
• antigen,
• remedy,
• agent,
• pharmaceutical,