About The Word Dioptre

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Dioptre

Dioptre Meaning & Definition
Dioptre Definition And Meaning

What's The Definition Of Dioptre?

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Dioptre In Webster's Dictionary

\Di*op"tre\, n. [F. See 2d {Dioptric}.] (Optics) A unit employed by oculists in numbering glasses according to the metric system; a refractive power equal to that of a glass whose principal focal distance is one meter.

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