Cavity
Pronunciation : Cav"i*ty
Part of Speech : n.;
Etymology : [L. cavus hollow: cf. F. cavit?.]
Definition : 1. Hollowness. [Obs.] The cavity or hollowness of the place. Goodwin.
2. A hollow place; a hollow; as, the abdominal cavity. An instrument with a small cavity, like a small spoon. Arbuthot. Abnormal spaces or excavations are frequently formed in the lungs, which are designated cavities or vomic?. Quain. Body cavity, the coelum. See under Body.
pl. Cavities.
Source : Webster's Unabridged Dictionary, 1913