a cooking utensil of parallel metal bars; used to grill fish or meat | electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope |
an electrode placed between the cathode and anode of a vacuum tube to control the flow of electrons through the tube | |
a system of high tension cables by which electrical power is distributed throughout a region | |
a perforated or corrugated metal plate used in a storage battery as a conductor and support for the active material | |
a pattern of regularly spaced horizontal and vertical lines | |