cathode

        英 ['k?θ??d] 美['k?θod]
        • n. 陰極

        TEM8擴(kuò)展詞匯

        詞態(tài)變化


        復(fù)數(shù):?cathodes;

        助記提示


        1. cat- "cata-, down" + hod- + -e.
        2. => way down, a way down.
        3. => So called from the path the electric current was supposed to take.

        中文詞源


        cathode 陰極

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

        英文詞源


        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.

        雙語例句


        1. Cathode rays are attracted by a positive charge.
        陰極射線被正電荷所吸引.

        來自《簡明英漢詞典》

        2. Cold cathode sensing tubes are more rugged than the glass, hot - filament tubes.
        冷陰極傳感管比玻璃熱絲管堅(jiān)實(shí).

        來自辭典例句

        3. The so - called visual display unit is in fact a cathode ray tube.
        所謂可見顯示裝置實(shí)際上是一個(gè)陰極射線管.

        來自辭典例句

        4. Three dispatchers were scanning cathode ray tube displays for information.
        三名調(diào)度員正在研究陰極射線管所顯示的情報(bào).

        來自辭典例句

        5. The amount of information that a cathode ray tube screen displays.
        陰極射線管屏幕所顯示的信息總量.

        來自辭典例句

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