fluor crown

noun

Definition of fluor crown

: a crown glass that contains fluorine, that has a low refractive index, and that is used especially for optical equipment

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History and Etymology for fluor crown

fluor-

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Cite this Entry

“Fluor crown.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluor%20crown. Accessed 22 Oct. 2020.

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