peritoneal cavity(n = noun.body) greater peritoneal sac - the interior of the peritoneum; a potential space between layers of the peritoneum;
is a kind of bodily cavity, cavity, cavum
has parts: bursa omentalis, lesser peritoneal cavity, omental bursa

abdominal cavity, amniotic cavity, axillary cavity, bodily cavity, buccal cavity, cavity, cavity resonator, cavity wall, chest cavity, cleavage cavity, cotyloid cavity, cranial cavity, glenoid cavity, greater peritoneal sac, intracranial cavity, lesser peritoneal cavity, nasal cavity, oral cavity, orbital cavity, pelvic cavity, pericardial cavity, peritoneal, peritoneal inflammation, pleural cavity, pulp cavity, segmentation cavity, thoracic cavity, tubular cavity, tympanic cavity, uterine cavity