cathode, electrode electrode, terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic conductors, but in some circuits the current passes for some distance through a
..... Click the link for more information. through which current leaves an electric device. In electrolysis electrolysis (ĭlĕktrŏl`əsĭs)
..... Click the link for more information. , it is the negative electrode in the electrolytic cell.

cathode

Terminal or electrode at which electrons enter a system, such as an electrolytic cell or an electron tube. In a battery or other source of direct current, the cathode is the positive terminal. In a passive load it is the negative terminal. In an electron tube, such as a cathode-ray tube, electrons stream off the cathode and travel through the tube toward the anode.

Meaning "down direction" in Greek, it is the emitting side of an emit-receive circuit. A cathode is considered a "negative electrode." Its counterpart, the "anode," means "up direction." For example, in a battery, the negative terminal is the cathode, and the positive side is the anode. In a vacuum tube, the cathode is the electron emitter ("cathode ray emitter"), and the anode is the collector plate. See electrode.

Cathodes and Anodes
The cathode is the emitting side of an electric or electronic device such as in these examples.

cathode (redirected from Kathode)

cathode

cathode
(redirected from Kathode)