ˌentərōˈsēlə noun plural
Usage: capitalized
Etymology: New Latin, from enter- + -coela (from Greek koilos hollow) — more at cave
in some classifications : a group comprising all the invertebrate animals (as echinoderms and coelenterates) in which the sole bodily cavity is the digestive cavity — compare coelomata , pseudocoelomata ; enterocoele