constantan Hear it!

constantan definition

con·stantan (kän′stən tan′)

noun

an alloy of copper (c. 55%) and nickel (c. 45%), used in pyrometers and thermocouples

Etymology: so named because of its constant-temperature coefficient of resistance

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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