General

In masonry, a rabbet such as that made on the inner side of a chimneypiece to receive a slip.

The illumination of an object from the rear.

In surveying, a sight on a previously established survey point or line.

A plate, usually metal or wood, which serves as a backing for a structural member

A coat of plaster applied to the back side of lath, opposite the finished surface.

A lamp holder, integrally mounted on a plate, which is designed for screwing to a flat surface.