title: Cavity
text: # Cavity
  
  Cavity may refer to:
  
  ## Biology and healthcare
  
  * Body cavity, a fluid-filled space in many animals where organs typically develop
     * Gastrovascular cavity, the primary organ of digestion and circulation in cnidarians and flatworms
  * Dental cavity or tooth decay, damage to the structure of a tooth
  * Lung cavity, an air-filled space within the lung
  * Nasal cavity, a large, air-filled space above and behind the nose in the middle of the face
  
  ## Radio frequency resonance
  
  * Microwave cavity or RF cavity, a cavity resonator in the radio frequency range, for example used in particle accelerators
  * Optical cavity, the cavity resonator of a laser
  * Resonant cavity, a device designed to select for waves of particular wavelengths
  
  ## Other uses
  
  * Cavity (band), a sludge metal band from Miami, Florida
  * Cavity method, a mathematical method to solve some mean field type of models
  * Cavity wall, a wall consisting of two skins with a cavity
  