- an optical glass of high dispersion and a relatively high index of refraction, composed of alkalis, lead oxide, and silica, with or without other bases, sometimes used as the diverging lens component of an achromatic lens.
Origin of flint glass
First recorded in 1665–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for flint glass
P represents a flint-glass prism supported on the cast-iron tripod F, and retained in its place by the spring c.
The duty on flint-glass was imposed on the molten glass in the crucibles and on the unfinished goods.
A great number of flint-glass works turn out the best flint glass produced in the country.Peculiarities of American Cities
From this we infer, it must be a flint-glass bottle, as the sand suitable for green or black glass abounds on their shore.
We now proceed to examine a more interesting topic, viz., the rise and progress of the flint-glass business in the West.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012