n. In architecture: That part of a pedestal between the base and the cornice; the die.n. The finishing of the lower part of the walls in the interior of a house, made somewhat to represent the dado of a pedestal, and consisting frequently of a skirting of wood about 3 feet high. The dado is also sometimes represented by wallpaper, India matting, or some textile fabric, or by painting.To groove.To insert in a groove, as the end of a shelf into its upright.