Cavity

A cavity is a hollow in an object.

Biology and healthcare

• Lung cavity, an air-filled space within the lung
• Cavity or dental caries, damage to the structure of a tooth
• Body cavity, a fluid filled space in many animals where organs typically develop
  • The gastrovascular cavity, which is the cavity in cnidarian and flatworms

Radio frequency resonance

• Microwave cavity or RF cavity, a cavity resonator in the radio frequency range, for example used in particle accelerators
• Optical cavity, the cavity resonator of a laser
• Resonant cavity, 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, 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)