AskDefine | Define cavity

Dictionary Definition



1 a sizeable hole (usually in the ground); "they dug a pit to bury the body" [syn: pit]
2 space that is surrounded by something [syn: enclosed space]
3 soft decayed area in a tooth; progressive decay can lead to the death of a tooth [syn: caries, dental caries, tooth decay]
4 (anatomy) a natural hollow or sinus within the body [syn: bodily cavity, cavum]

User Contributed Dictionary



  1. A hole or hollow depression.
  2. A hollow area within the body (such as the sinuses).
  3. A soft area in a decayed tooth.


hole or hollow depression
hollow area within the body
soft area in a decayed tooth
  • Japanese: [虫歯] (mushiba) invariant
  • Spanish: caries invariant

Extensive Definition

A cavity is a hole. It may refer to:
  • Dental cavity, damage to the structure of teeth
  • Resonator, a device designed to select for waves of particular wavelengths
  • 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 sludge metal band from Miami, Florida.
cavity in German: Kavität
cavity in Dutch: Caviteit
cavity in Simple English: Cavity

Synonyms, Antonyms and Related Words

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