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Cavity may refer to:


Biology and healthcare

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Body cavity A body cavity is any space or compartment, or potential space, in an animal body. Cavities accommodate organs and other structures; cavities as potential spaces contain fluid. The two largest human body cavities are the ventral body cavity, and ...
, a fluid-filled space in many animals where organs typically develop **
Gastrovascular cavity The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Coelenterates or cnidarians (including jellyfish and corals) and Platyhelminthes (flatworms). The cavity may be extensively branched into ...
, the primary organ of digestion and circulation in cnidarians and flatworms *
Dental cavity Tooth decay, also known as cavities or caries, is the breakdown of teeth due to acids produced by bacteria. The cavities may be a number of different colors from yellow to black. Symptoms may include pain and difficulty with eating. Complicatio ...
or tooth decay, damage to the structure of a tooth *
Lung cavity A lung cavity or pulmonary cavity is an abnormal, thick-walled, air-filled space within the lung. Cavities in the lung can be caused by infections, cancer, autoimmune conditions, trauma, congenital defects, or pulmonary embolism. The most common ...
, an air-filled space within the lung


Radio frequency resonance

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Microwave cavity A microwave cavity or ''radio frequency (RF) cavity'' is a special type of resonator, consisting of a closed (or largely closed) metal structure that confines electromagnetic fields in the microwave region of the spectrum. The structure is eithe ...
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

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Cavity (band) Cavity is an American sludge metal band from Miami, Florida. They first formed in 1992, releasing a multitude of albums and singles before breaking up in 2003. Steve Brooks and Juan Montoya would go on to play in Torche and Floor. Anthony Vialo ...
, a sludge metal band from Miami, Florida *
Cavity method The cavity method is a mathematical method presented by Marc Mézard, Giorgio Parisi and Miguel Angel Virasoro in 1987 to solve some mean field type models in statistical physics, specially adapted to disordered systems. The method has been used to ...
, a mathematical method to solve some mean field type of models *
Cavity wall A cavity wall is a type of wall that has a hollow center. They can be described as consisting of two "skins" separated by a hollow space (cavity). The skins typically are masonry, such as brick or cinder block. Masonry is an absorbent material ...
, a wall consisting of two skins with a cavity


See also

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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 lung cavity or pulmonary cavity is an abnormal, thick-walled, air-filled space within the lung. Cavities in the lung can be caused by infections, cancer, autoimmune conditions, trauma, congenital defects, or pulmonary embolism. The most common ...
, a type of pneumonia in which a hole is formed in the lung *
Cavity Search (disambiguation) A body cavity search, also known simply as a cavity search, is either a visual search or a manual internal inspection of body cavities for prohibited materials ( contraband), such as illegal drugs, money, jewelry, or weapons. Body cavities freque ...
* Hollow (disambiguation) {{disambiguation