1. A sizeable hole (usually in the ground)
   - pit 
2. Space that is surrounded by something
   - enclosed space 
3. Soft decayed area in a tooth; progressive decay can lead to the death of a tooth
   - caries, dental caries, tooth decay 
4. (anatomy) a natural hollow or sinus within the body
   - bodily cavity, cavum

Derived forms: cavities

Type of: anatomical structure, bodily structure, body structure, complex body part, decay, hole, hollow, space, structure

Part of: body, organic structure, physical structure

Encyclopedia: Cavity

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