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electrode

electrode, terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic conductors, but in some circuits the current passes for some distance through a nonmetallic conductor. For example, in electrolysis current passes through a liquid electrolyte; in a fluorescent lamp current passes through a gas. An electrode is usually in the form of a wire, rod, or plate. It may be made of a metal, e.g., copper, lead, platinum, silver, or zinc, or of a nonmetal, commonly carbon. The electrode through which current passes from the metallic to the nonmetallic conductor is called the anode, and that through which current passes from the nonmetallic to the metallic conductor, the cathode. (Electron flow is in a direction opposite that of conventionally defined current.) In most familiar electric devices, current flows from the terminal at higher electric potential (the positive electrode) to the terminal at lower electric potential (the negative electrode); therefore, the anode is usually the positive electrode and the cathode the negative electrode. In some electric devices, e.g., an electric battery, nonelectric energy is converted to electric energy, causing current to flow within the device from the negative electrode to the positive electrode, so that the anode is the negative electrode and the cathode is the positive electrode.

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"electrode." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"electrode." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/electrode

"electrode." The Columbia Encyclopedia, 6th ed.. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/electrode

electrode

electrode Conductor, usually a wire or rod, through which an electric current flows into or leaves a medium. In electrolysis, two electrodes – a positive (anode) and a negative (cathode) – are immersed in an electrolyte.

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"electrode." World Encyclopedia. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"electrode." World Encyclopedia. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/electrode

"electrode." World Encyclopedia. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/electrode

electrode

electrode (i-lek-trohd) n. any part of an electrical conductor or recording device that is used to apply electric current to a part of the body or collect electrical activity (e.g. from the heart or brain).

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"electrode." A Dictionary of Nursing. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

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"electrode." A Dictionary of Nursing. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/electrode

electrode

e·lec·trode / iˈlektrōd/ • n. a conductor through which electricity enters or leaves an object, substance, or region.

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"electrode." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"electrode." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/electrode-0

"electrode." The Oxford Pocket Dictionary of Current English. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/electrode-0

electrode

electrode XIX. f. ELECTRIC + Gr. hodós way. Cf. ANODE, CATHODE.

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"electrode." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"electrode." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/electrode-1

"electrode." The Concise Oxford Dictionary of English Etymology. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/electrode-1

electrode

electrodeabode, bestrode, bode, code, commode, corrode, download, encode, erode, explode, forebode, goad, implode, load, lode, middle-of-the-road, mode, node, ode, offload, outrode, road, rode, sarod, Spode, strode, toad, upload, woad •geode •diode, triode •barcode • zip code • unhallowed •carload • cartload • payload •trainload • caseload • freeload •peakload • shipload • coachload •boatload • truckload • wagonload •workload • anode • internode •epode • antipode • electrode •railroad •byroad, highroad •rhapsode • episode • cestode •nematode, trematode •cathode

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"electrode." Oxford Dictionary of Rhymes. . Encyclopedia.com. 23 May. 2017 <http://www.encyclopedia.com>.

"electrode." Oxford Dictionary of Rhymes. . Encyclopedia.com. (May 23, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/electrode

"electrode." Oxford Dictionary of Rhymes. . Retrieved May 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/electrode