having a coelom.
a coelomate animal.
Origin of coelomate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
1883, from Coelomata (1877), from Modern Latin neuter plural of coelomatus, from Greek koilomat- "hollow, cavity," from PIE root *kel- (see cell).
Online Etymology Dictionary, © 2010 Douglas Harper