ground glass


noun
  1. Optics. glass that has had its polished surface removed by fine grinding and that is used to diffuse light.

  2. glass that has been ground into fine particles, especially for use as an abrasive.

Origin of ground glass

1
First recorded in 1840–50

Words Nearby ground glass

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use ground glass in a sentence

  • The barrels, and every bit of metal upon them, instantly became white, like ground glass!

    Hudson Bay | R.M. Ballantyne

British Dictionary definitions for ground glass

ground glass

noun
  1. glass that has a rough surface produced by grinding, used for diffusing light

  2. glass in the form of fine particles produced by grinding, used as an abrasive

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