HyperDic: optical_flint

English > 1 sense of the expression optical flint:
NOUNsubstanceoptical flint, flint glassoptical glass of high dispersion and high refractive index
English > optical flint: 1 sense > noun 1, substance
Meaningoptical glass of high dispersion and high refractive index.
Synonymflint glass
Broaderoptical glassClear homogeneous glass of known refractive index

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