dado

1. The section of a pedestal above the base.

   the section of a pedestal between the base and the surbase

2. The lower portion of an interior wall decorated differently from the upper portion.

   panel forming the lower part of an interior wall when it is finished differently from the rest of the wall

3. A rectangular channel in a board cut across the grain.

   a rectangular groove cut into a board so that another piece can fit into it

regular