1 Charting the Labor Market (monthly)âa package of charts featuring data from the Current Population Survey. 2  Subscribe to the BLS News Service -- receive The Employment Situation news releases by e-mail.
Medical Definition of peritoneal cavity. : a space formed when the parietal and visceral layers of the peritoneum spread apart.
The peritoneum is the serous membrane that forms the lining of the abdominal cavity or coelom in amniotes and some invertebrates, such as annelids. It covers most of the intra-abdominal (or coelomic) organs, and is composed of a layer of mesothelium supported by a thin layer of connective tissue.