Modifiers matching cavity:

• dead,
• artificial,
• underground,
• deep,
• natural,
• available,
• peripheral,
• cardiac,
• sensitive,
• organic,
• internal,
• small,
• interior,
• hollow,
• neighboring,
• micro,
• pelvic,
• negative,
• abdominal,
• accessible,
• moist,
• over,
• mucosal,
• subsurface,
• tubular,
• thin,
• thoracic,
• major,
• adjacent,
• inner,
• secretory,
• anatomical,
• closed,
• dark,
• uterine,
• intermediate,
• complex,
• simple,
• large,
• vascular,
• nearby,

Simple categories matching secretory:

• fluid,
• tissue,
• component,
• system,
• gland,
• cavity,
• organs,
• organelle,
• structure,
• unit,
• compartment,
• protein,
• cell,
• enzyme,