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A cavity is a hollow in an object. It may refer to:

  • Cavity or dental caries, a damage to the structure of a tooth
  • Body cavity, a fluid filled space in many animals where organs typically develop
  • Cavity (heat source), the regions formed between adjacent fins to extract heat from a variety of heat generating bodies to a heat sink[1][2][3][4]
  • Cavity wall, a wall consisting of two skins with a cavity
  • Cavity (band), a sludge metal band from Miami, Florida
  • Cavity method, a mathematical method to solve some mean field type of models

In radio frequency resonance[edit]

  • Cavity Resonator, a device designed to select for waves of particular wavelengths
  • Optical cavity, the cavity resonator of a laser
  • Microwave cavity or RF cavity, a cavity resonator in the radio frequency range, for example used in particle accelerators


  1. ^ Bisemi C, Rocha LAO, Bejan A. Inverted fins: geometric optimization of the intrusion into a conducting wall. Int J Heat Mass Transfer 2004;47:2577–86.
  2. ^ M. R. Hajmohammadi, S. Poozesh, A. Campo and Seyed Salman Nourazar, Valuable reconsideration in the constructal design of cavities, Energy Conversion and Management, 66 (2013) 33–40.
  3. ^ Lorenzini G, Biserni C, Rocha LAO. Geometric optimization of isothermal cavities according to Bejan’s theory. Int J Heat Mass Transfer 2011;54: 3868–73.
  4. ^ A. Pouzesh, M. R. Hajmohammadi and S. Poozesh, Investigations on the internal shape of constructal cavities intruding a heat generating body, Thermal Science, DOI: 10.2298/TSCI120427164P 2012.

See also[edit]

  • Cavitation, the phenomenon of partial vacuums forming in fluid, for example, in propellors
  • Cavitary pneumonia, a type of pneumonia in which a hole is formed in the lung