‖n. pl. [ NL., fr. Gr. &unr_; a fig. ] (Zool.) A division of calcareous sponges. [ 1913 Webster ]

☞ They usually resemble a fig, being vase-shaped with a fringed opening at the summit. The feeding cells are in ampullae connected with radial tubes in the thickened walls of the body. [ 1913 Webster ]