a conductor used to make electrical contact with some part of a circuit

of or at or pertaining to a cathode

a cell containing an electrolyte in which an applied voltage causes a reaction to occur that would not occur otherwise (such as the breakdown of water into hydrogen and oxygen)

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

a positively charged electrode by which electrons leave an electrical device

a cathode that is a source of electrons without being heated

a cathode that emits electrons when illuminated

a cathode electrode which is heated to make it emit electrons due to thermionic emission.

an electrode in a vacuum tube that serves as an electron multiplier through secondary emission.

a cell containing an electrolyte in which an applied voltage causes a reaction to occur that would not occur otherwise (such as the breakdown of water into hydrogen and oxygen)

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope