Definition of substage in US English:



  • usually as modifier An apparatus fixed beneath the ordinary stage of a compound microscope to support mirrors and other accessories.

    • ‘For microscopic examination of the vaginal discharge, warming the slide and decreasing the intensity of substage lighting are ways to increase sensitivity for trichomonads.’
    • ‘Even though the digital images are generally good, important details of the tissues are often lost that might be enhanced with appropriate adjustments of a real microscope (focus and substage diaphragm adjustments).’