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Merriam-Webster's Collegiate Dictionary cath·ode \\ˈka-ˌthōd\\ noun ETYMOLOGY Greek kathodos way down, from kata- + hodos way
DATE 1834
1. the electrode of an electrochemical cell at which reduction occurs: a. the negative terminal of an electrolytic cell b. the positive terminal of a galvanic cell2. the electron-emitting electrode of an electron tube; broadly : the negative electrode of a diode — compare anode • cath·od·al \\ˈka-ˌthō-d əl\\ adjective• cath·od·al·ly adverb• ca·thod·ic \\ka-ˈthä-dik, -ˈthō-\\ adjective• ca·thod·i·cal·ly \\-di-k(ə-)lē\\ adverb
cathode
1834, from Gk. cathodos "a way down," from kata- "down" + hodos "way" (see cede). Cathode ray first attested 1880, but the phenomenon known from 1859; cathode ray tube is from 1905.
Oxford Advanced Learner's Dictionary-牛津双解-OALD7 cathodecath·ode / 5kAWEud; NAmE -oud / noun (technical 术语) the electrode in an electrical device where reduction occurs; the negative electrode in an electrolytic cell and the positive electrode in a battery 阴极；负极⇨ compare anode
Webster's Third New International Dictionary, Unabridged cath·ode\ˈkaˌthōd\ noun( -s) Etymology: Greek kathodos way down, descent, from kata- cata- + hodos way; from the belief that the electric current passes from east to west — more at cede 1. : the electrode at which electrons enter a device from the external circuit — opposed to anode2. a. : the negative terminal of an electrolytic cell b. : the positive terminal of a primary cell or of a storage battery that is delivering current c. : the electron-emitting electrode (as a tungsten filament or an oxide-coated metal) of an electron tube
Search result show the entry is found in: cathode current , or cathode dark space , or cathode follower , or cathode glow , or cathode ray , or cathode-ray oscillograph , or cathode-ray oscilloscope , or cathode-ray tube , or cathode spot , or cold cathode , or hot-cathode
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