pih-LAS´-ter
A pilaster is a rectangular column attached to a wall.
Pilasters project into a room in a shallow manner, usually by less than one-third of their width.
Pilasters may be structural, and actually support a building, or they may be simply decorative. They’re generally topped with a classical entablature.
To add formality and “bones” to the dining room, we surrounded it with Corinthian pilasters.