Cavity

A cavity is a hole. It may refer to:

Dental cavity, damage to the structure of teeth
Body cavity, a fluid filled space in many animals where organs typically develop
Cavity wall, a wall consisting of two skins with a 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
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
Cavity (band), a sludge metal band from Miami, Florida.

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