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