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voltaic couple

noun, Electricity.
a pair of substances, as two different metals, that when placed in a proper solution produces an electromotive force by chemical action.
Also called galvanic couple. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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voltaic couple

(physics) a pair of dissimilar metals in an electrolyte with a potential difference between the metals resulting from chemical action
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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