optical glass

noun Optics.

any of several types of high-quality, homogeneous, color-free glass, as flint or crown glass, having specified refractive properties, used in lenses and other components of optical systems.

Words nearby optical glass

optical double star, optical effects, optical fiber, optical fibre, optical flint, optical glass, optical illusion, optical image, optical isomer, optical isomerism, optical mark reading

Origin of optical glass

First recorded in 1740–50

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for optical glass

You know he was an optical-glass maker by profession, and the best we have ever had.
The Story of Anna Kingsford and Edward Maitland and of the new Gospel of Interpretation|Edward Maitland
You know, he was an optical-glass maker by profession, and the best we ever had.
Reviews|Oscar Wilde
This procedure is being repeated in the launching of an optical-glass industry; this trade has also been in Teutonic hands.
The War After the War|Isaac Frederick Marcosson

British Dictionary definitions for optical glass

optical glass

noun

any of several types of clear homogeneous glass of known refractive index used in the construction of lenses, etcSee optical flint, optical crown

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