General

backplate lamp holder

April 15, 2024

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

April 15, 2024

A backing in the form of a ring, used during the welding of piping at butt joints.

April 15, 2024

1. The flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of

April 15, 2024

See backwater valve.

April 15, 2024

The total noise from all sources other than a particular one of interest.

April 15, 2024

1. A privy or outhouse. 2. A structure that stands behind a building to which it is a subsidiary.

April 15, 2024

See carpet backing.

April 15, 2024

In a suspended acoustical ceiling, a flat sheet of gypsum board to which acoustical tile is attached by adhesive or

April 15, 2024

A relatively low-quality brick used behind face brick or other masonry.