Meaning of CATHODE in English

CATHODE

I

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 cathode-ray tube , electrons stream off the cathode and travel through the tube toward the anode .

II

[c mediumvioletred] (as used in expressions)

cathode ray oscilloscope

cathode ray

{{link=cathode ray tube">cathode ray tube

Britannica English dictionary.      Английский словарь Британика.