Cavity may refer to:
Biology and healthcare
*
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 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 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