: a diffraction grating made by ruling a plane metallic mirror with lines having a relatively wide spacing
Examples of echelle in a Sentence
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The echelle spectrograph for rocky exoplanets and stable spectroscopic observations (ESPRESSO) is an excellent tool to make these observations.
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Chris Lee, Ars Technica, 28 Apr. 2020
Chris Lee, Ars Technica, 28 Apr. 2020
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'echelle.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Echelle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/echelle. Accessed 23 Apr. 2024.
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