A cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
(Noun)
Synonyms:
celom
celoma
Coelom Sentence Examples
The body wall of the Chaetopoda consists of a "dermo-muscular" tube which is separated from the gut by the coelom and its peritoneal walls, except in most leeches.
Several forms of cells float freely in the fluid of the coelom.
In another sense also the coelom is not a closed cavity, for it communicates in several ways with the external medium.
In this worm the ventral blood-vessel is so swollen as to occupy nearly the whole of the available coelom.
Thus the nephridia, in this case at least, are a part of the coelom and are not shut off from it by a layer of peritoneum, as are other organs which lie in it, e.g.