A hollow area or hole. It may describe a body
cavity (such as the space within the abdomen) or a hole in a tooth caused by decay.
cavity (KA-vih-tee)
A hollow area or hole. It may describe a body cavity (such as the space within the abdomen) or a hole in a tooth caused by decay.
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)