Answer:
A pilaster is a vertical rectangular column-like architectural element that is usually attached to a wall and appears to be a part of it. It has a decorative purpose and often features an ornamental capital and base to resemble a classical column. Pilasters are commonly used in architecture to add visual interest to a buildings facade, and in furniture design, they can be used as decorative or structural elements. Rectangular, or half-round pillar, or column, placed against a surface.