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reducing glass

noun
  1. a lens or mirror that produces a virtual image of an object smaller than the object itself.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for reducing glass

Historical Examples

  • The reducing-glass will help you to get the size and position of things.

    The Painter in Oil

    Daniel Burleigh Parkhurst

British Dictionary definitions for reducing glass

reducing glass

noun
  1. a lens or curved mirror that produces an image smaller than the object observed
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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