Biography Wikipedia
Wikipedia:
A cavity is a hole. It may refer to:
Dental cavity, damage to the structure of teethBody cavity, a fluid filled space in many animals where organs typically developCavity 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 laserMicrowave cavity or RF cavity, a cavity resonator in the Radio Frequency range, for example used in particle acceleratorsCavitation, the phenomenon of partial vacuums forming in fluid, for example, in propellorsCavitary pneumonia, a type of pneumonia in which a hole is formed in the lungCavity (band), a sludge metal band from Miami, Florida.
