Cavity
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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


Radio frequency resonance

* Microwave cavity or ''RF cavity'', a cavity resonator in the radio frequency range, for example used in particle accelerators *
Optical cavity An optical cavity, resonating cavity or optical resonator is an arrangement of mirrors or other optical elements that forms a cavity resonator for light waves. Optical cavities are a major component of lasers, surrounding the gain medium and provi ...
, the cavity resonator of a laser *
Resonant cavity A resonator is a device or system that exhibits resonance or resonant behavior. That is, it naturally oscillates with greater amplitude at some frequencies, called resonant frequencies, than at other frequencies. The oscillations in a resonato ...
, 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


See also

*
Cavitation Cavitation is a phenomenon in which the static pressure of a liquid reduces to below the liquid's vapour pressure, leading to the formation of small vapor-filled cavities in the liquid. When subjected to higher pressure, these cavities, cal ...
, the phenomenon of partial vacuums forming in fluid, for example, in propellers * Cavitary pneumonia, a type of pneumonia in which a hole is formed in the lung * Cavity Search (disambiguation) *
Hollow (disambiguation) Hollow may refer to: Natural phenomena *Hollow, a low, wooded area, such as a copse *Hollow (landform), a small vee-shaped, riverine type of valley * Tree hollow, a void in a branch or trunk, which may provide habitat for animals Places *Sleepy ...
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