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The point of contact between two dissimilar metals in a thermocouple at which a thermoelectric current is produced.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(General Physics) a point of electrical contact between two dissimilar metals across which a voltage appears, the magnitude of which depends on the temperature of the contact and the nature of the metals. See also Seebeck effect
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