| Shell subspherical or polyhedral, with fourteen triangular, convex faces, covered with irregular polygonal plates. |
| The cells of which it is composed are polyhedral, thicker, and more loosely joined, and filled with sap and chlorophyl. |
| A section of such a polyhedral structure would appear as a tissue of polygons. |
| These teapots, reflecting interest in the simple, clean lines of polyhedral Japanese tea-kettles, were made in very limited numbers in silver and electroplate. |
| The bases of the radial spines are connected by prominent concave crests, which form the edges of the polyhedral shell. |
| The surfaces of the cells are then seen to form a mosaic, each cell area having a polyhedral shape. |
