| 单词 | cathode |
| 释义 | cathode n. (also kathode) Electr. 1. the negative electrode in an electrolytic cell or electronic valve or tube. 2. the positive terminal of a primary cell such as a battery (opp. ANODE). Phrases and idioms cathode ray a beam of electrons emitted from the cathode of a high-vacuum tube. cathode-ray tube a high-vacuum tube in which cathode rays produce a luminous image on a fluorescent screen. Usage Abbr.: CRT. Derivatives cathodal adj. cathodic adj. Etymology: Gk kathodos descent f. kata down + hodos way |
| 随便看 |
英语词典包含43808条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。