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A cavity is a hollow in an object.

Biology and healthcare[edit]

Radio frequency resonance[edit]

  • 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[edit]

  • 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

See also[edit]