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anode

[ an-ohd ]
/ ˈæn oʊd /
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noun
the electrode or terminal by which current enters an electrolytic cell, voltaic cell, battery, etc.
the negative terminal of a voltaic cell or battery.
the positive terminal, electrode, or element of an electron tube or electrolytic cell.

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Origin of anode

1825–35; <Greek ánodos way up, equivalent to an-an-3 + hodós way, road
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use anode in a sentence

British Dictionary definitions for anode

anode
/ (ˈænəʊd) /

noun
the positive electrode in an electrolytic cell
Also called (esp US): plate the positively charged electrode in an electronic valve
the negative terminal of a primary cellCompare cathode

Derived forms of anode

anodal (eɪˈnəʊdəl) or anodic (əˈnɒdɪk), adjective

Word Origin for anode

C19: from Greek anodos a way up, from hodos a way; alluding to the movement of the current to or from the positive pole
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

Scientific definitions for anode

anode
[ ănōd′ ]

The positive electrode in an electrolytic cell, toward which negatively charged particles are attracted. The anode has a positive charge because it is connected to the positively charged end of an external power supply.
The positively charged element of an electrical device, such as a vacuum tube or a diode, to which electrons are attracted.
The negative electrode of a voltaic cell, such as a battery. The anode gets its negative charge from the chemical reaction that happens inside the battery, not from an external source. Compare cathode.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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