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1. (n.) flint glass
an optical glass of high dispersion and a relatively high index of refraction, composed of alkalis, lead oxide, and silica.
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| Definition of 'flint glass' |
Princeton's WordNet |
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1. (noun) optical flint, flint glass
optical glass of high dispersion and high refractive index
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| Definition of 'flint glass' |
Webster Dictionary |
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1. flint glass
a soft, heavy, brilliant glass, consisting essentially of a silicate of lead and potassium. It is used for tableware, and for optical instruments, as prisms, its density giving a high degree of dispersive power; -- so called, because formerly the silica was obtained from pulverized flints. Called also crystal glass. Cf. Glass
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Definitions of flint glass 
