1. a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity; [syn: celom, coelom, celoma]
WordNet (r) 3.0 (2006):
coelom
n 1: a cavity in the mesoderm of an embryo that gives rise in
humans to the pleural cavity and pericardial cavity and
peritoneal cavity [syn: celom, coelom, celoma]