elinvar

noun

el·​in·​var
ˈelə̇nˌvär
plural -s
: an alloy that contains about 50 percent iron, 36 percent nickel, and 12 percent chromium, that has low thermal expansivity and a modulus of elasticity virtually unaffected by changes in temperature, and that is used for springs for watches and other precise instruments

Word History

Etymology

French élinvar, from élasticité invariable invariable elasticity

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Cite this Entry

“Elinvar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/elinvar. Accessed 30 Nov. 2022.

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