Meaning : A pattern of regularly spaced horizontal and vertical lines.

Meaning : A system of high tension cables by which electrical power is distributed throughout a region.

Meaning : A perforated or corrugated metal plate used in a storage battery as a conductor and support for the active material.

Meaning : An electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube.

Meaning : A cooking utensil of parallel metal bars. Used to grill fish or meat.