body cavity

(redirected from Acoelomata)
Also found in: Medical, Encyclopedia.

body cavity

n.
1. See coelom.
2. Any of the cavities of the body that adjoin external orifices, such as the mouth or rectum.

body cavity

n
(Anatomy) the internal cavity of any multicellular animal that contains the digestive tract, heart, kidneys, etc. In vertebrates it develops from the coelom