Diode definition is an electronic device that has two electrodes or terminals and is used especially as a rectifier. The most common type of diode uses a p n junction. What Is A Diode Fluke Tunnel Diode Definition By Diodes Selection Guide Engineering360 An example of a diode is a light emitting diode an led. Definition of a diode . A diode is an electrical component designed to conduct electric current in only one direction. Diode synonyms diode pronunciation diode translation english dictionary definition of diode. In circuit diagrams a diode is represented by a triangle with a line across one vertex. Diode thermionic diode n. Diode an electrical component that allows the flow of current in only one direction. The definition of a diode is an electronic device with two transmitting terminals that allows electric current to flow in one directi...