Cav·i·ty n.; pl. Cavities
  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.   --Arbuthnot.
     Abnormal spaces or excavations are frequently formed in the lungs, which are designated cavities or vomicæ.   --Quain.
  Body cavity, the cœlum. See under Body.
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