etalon

[eyt-l-on]

noun

Optics.

1. an interferometer consisting of two glass plates that reflect approximately half of each ray of light incident upon them and that are separated by a small, fixed distance: used to compare wavelengths and to study atomic spectra.

etalon

/ ˈɛtəˌlɒn /

noun

1. physics a device used in spectroscopy to measure wavelengths by interference effects produced by multiple reflections between parallel half-silvered glass or quartz plates

Word History and Origins

Origin of etalon¹

1900–05; < French; Middle French estalon standard, derivative of Old French estal place < Germanic; stall ¹

Word History and Origins

Origin of etalon¹

C20: French étalon a fixed standard of weights and measures, from Old French estalon; see also _stallion

Example Sentences

The Finnish builder completed the sale of its businesses in Russia to Etalon Group in May 2022.

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But the man who collected the prize on Chebbi's behalf from soldier-turned-President Ibrahim Traoré, said that winning the Etalon d'or du Yennenga - as the top award is known - "means a lot" to Chebbi.

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YIT announced in April it would sell its business in the country to Etalon Group.

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YIT announced early in April it would sell its business in the country to Etalon Group.

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The theme is African cinema and public policy, and more than 100 films are competing for the coveted Etalon d'Or.

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