anthozooidZool.|ænθəʊˈzəʊɔɪd| [f.Gr. ἄνθο-ς flower + zooid, ad.Gr. ζωοειδής like an animal.] An individual animalcule of a compound Zoophyte. 1877Huxley Inv. An. iii. 159 The axial cavity of each anthozooid is in communication with a system of large canals.