'Cavity' definitions:

Definition of 'cavity'

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

Definition of 'Cavity'

From: GCIDE
  • Cavity \Cav"i*ty\, n.; pl. Cavities. [L. cavus hollow: cf. F. cavit['e].]
  • 1. Hollowness. [Obs.] [1913 Webster]
  • The cavity or hollowness of the place. --Goodwin. [1913 Webster]
  • 2. A hollow place; a hollow; as, the abdominal cavity. [1913 Webster]
  • An instrument with a small cavity, like a small spoon. --Arbuthnot. [1913 Webster]
  • Abnormal spaces or excavations are frequently formed in the lungs, which are designated cavities or vomic[ae]. --Quain. [1913 Webster]
  • Body cavity, the c[oe]lum. See under Body. [1913 Webster]