A negatively charged electrode that is the source of electrons in an electrical device.
Gk. kathodos "descent, a way down," from kata- "down" + hodos "way, path."
partw-e kâtodi (#)
Fr.: rayon cathodique
A kind of ray generated at the cathode in a vacuum tube, by the electrical discharge.
→ cathode; →ray.
Electrode capable of releasing electrons when illuminated.