• synonyms


  1. the component part of a microscope below the stage, for supporting a condenser, mirror, or other accessories.
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Origin of substage

First recorded in 1855–60; sub- + stage
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for substage

Historical Examples of substage

  • It is held in a spring-sleeve and the substage can be raised and lowered by lateral screw, or may be swung to one side.

    Microscopes and Accessory Apparatus

    Ernst Leitz

  • The shape of the aperture is a not unimportant point; it should be square to allow of free movement over the substage condenser.

  • Remove the substage condenser and replace it by the dark ground condenser.

  • If it no longer occupies the centre of the field, alter the angle of the substage mirror until it does.

  • Once she turned the substage mirror a bit to catch direct the light streaming in the window.

    Sense of Obligation

    Henry Maxwell Dempsey (AKA Harry Harrison)

British Dictionary definitions for substage


  1. the part of a microscope below the stage, usually consisting of an adjustable assembly holding a condenser lens for illuminating the specimen
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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