- the component part of a microscope below the stage, for supporting a condenser, mirror, or other accessories.
Origin of substage
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for 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
The shape of the aperture is a not unimportant point; it should be square to allow of free movement over the substage condenser.
If it no longer occupies the centre of the field, alter the angle of the substage mirror until it does.
Remove the substage condenser and replace it by the dark ground condenser.
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)
- the part of a microscope below the stage, usually consisting of an adjustable assembly holding a condenser lens for illuminating the specimen
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