el·​in·​var | \ ˈelə̇nˌvär \
plural -s

Definition of elinvar

: 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

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History and Etymology for elinvar

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 Sep. 2020.

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