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[ih-lek-trohd] /ɪˈlɛk troʊd/
noun, Electricity.
a conductor, not necessarily metallic, through which a current enters or leaves a nonmetallic medium, as an electrolytic cell, arc generator, vacuum tube, or gaseous discharge tube.
Origin of electrode
First recorded in 1825-35; electr- + -ode2
Related forms
interelectrode, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for electrode


a conductor through which an electric current enters or leaves an electrolyte, an electric arc, or an electronic valve or tube
an element in a semiconducting device that emits, collects, or controls the movement of electrons or holes
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for electrode

1834, coined by English physicist and chemist Michael Faraday (1791-1867) from electro- + Greek hodos "way" (see cede) on same pattern as anode, cathode.

Online Etymology Dictionary, © 2010 Douglas Harper
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electrode in Medicine

electrode e·lec·trode (ĭ-lěk'trōd')

  1. A solid electric conductor through which an electric current enters or leaves an electrolytic cell or other medium.

  2. A collector or emitter of electric charge or of electric-charge carriers, as in a semiconducting device.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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electrode in Science
A conductor through which an electric current enters or leaves a substance (or a vacuum) whose electrical characteristics are being measured, used, or manipulated. Electrodes can be used to detect electrical activity such as brain waves. Terminal points in electrical components such as transistors, diodes, and batteries are electrodes.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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