• (n. pl.) A division of calcareous sponges.
Sy·co'nes noun plural [ New Latin , from Greek ... a fig.] (Zoology) A division of calcareous sponges. » They usually resemble a fig, being vase-shaped with a fringed opening at the summit. The feeding cells are in ampullæ connected with radial tubes in the thickened walls of the bod...