1. One of the divisions of a lattice girder.

2. A sheet of material held in a frame.

3. A distinct, usually rectangular, raised or sunken part of a construction surface or a material.

The face of the console, which is normally equipped with lights, switches, and buttons to control the machine, correct errors, determine the status of the various CPU (central processing unit) parts, and determine and revise the contents of various locations. Also known as control panel; patch panel.

See <<frog>>

A metallic or nonmetallic sheet on which operating controls and dials of an electronic unit or other equipment are mounted.

1. A system of coal extraction in which the ground is laid off in separate districts or panels, pillars of extra-large size being left between.

2. A large rectangular block or pillar of coal.