cathode

cata-, 向下。-hod, 走，路，词源同accede, anode, method.

cathode

cathode: [19] The term cathode, meaning ‘negative electrode’, appears to have been introduced by the English philosopher William Whewell around 1834. It was based on Greek káthodos ‘way down’, a compound formed from katá- ‘down’ and hodós ‘way’ (also represented in exodus ‘way out’ and odometer ‘instrument for measuring distance travelled’, and possibly related to Latin cēdere, source of English cede and a host of derived words). It specifically contrasts with anode, which means literally ‘way up’.
=> exodus, odometer

cathode (n.)

1834, from Latinized form of Greek kathodos "a way down," from kata- "down" (see cata-) + hodos "way" (see cede). Proposed by the Rev. William Whewell (1794-1866), English polymath, and published by English chemist and physicist Michael Faraday (1791-1867). So called from the path the electric current was supposed to take. Related: Cathodic; cathodal. Cathode ray first attested 1880, but the phenomenon known from 1859; cathode ray tube is from 1905.

1. Cathode rays are attracted by a positive charge.

阴极射线被正电荷所吸引.

2. Cold cathode sensing tubes are more rugged than the glass, hot - filament tubes.

冷阴极传感管比玻璃热丝管坚实.

3. The so - called visual display unit is in fact a cathode ray tube.

所谓可见显示装置实际上是一个阴极射线管.

4. Three dispatchers were scanning cathode ray tube displays for information.

三名调度员正在研究阴极射线管所显示的情报.

5. The amount of information that a cathode ray tube screen displays.

阴极射线管屏幕所显示的信息总量.