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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
1840-1850
1840-50
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for ground glass
Contemporary Examples
Historical Examples
  • At the top of this board was a band of ground glass, set off in divisions.

    The Onslaught from Rigel Fletcher Pratt
  • "I'd like a nice saucerful of ground glass," laughed one of the girls.

    Pee-wee Harris Percy Keese Fitzhugh
  • He pointed to a kind of box of ground glass and highly polished panelling.

    Bunner Sisters Edith Wharton
  • It will be more distinct if the ground glass be shaded from the light.

  • Their lilac-streaked bells nodded from a tall vase of ground glass.

    Clover Susan Coolidge
  • By-and-by daylight came like a glow in a ground glass globe.

    Lord Jim Joseph Conrad
  • In the ground glass the police commissioner's face grew purple.

    Empire Clifford Donald Simak
  • Then you can easily trace from these copies through the ground glass.

  • This effect is perhaps best witnessed on viewing a line spectrum such as that of the mercury arc, focused upon a ground glass.

    Visual Illusions Matthew Luckiesh
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
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Word Value for ground

8
11
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