With singular agreement: a former taxonomic division equivalent to the phylum Bryozoa. With plural agreement: bryozoans collectively.

With plural (or occasionally singular) agreement: a phylum of sedentary aquatic invertebrates comprising the moss animals, which form encrusting or…

Originally: an order or division of the Polyzoa (Bryozoa) having the anus opening outside the lophophore (cf. Entoprocta, n.). Later: = Bryozoa, n.