[ ster-ee-uh-skohp, steer- ]

  1. an optical instrument through which two pictures of the same object, taken from slightly different points of view, are viewed, one by each eye, producing the effect of a single picture of the object, with the appearance of depth or relief.

Origin of stereoscope

First recorded in 1830–40; stereo- + -scope

Words Nearby stereoscope Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use stereoscope in a sentence

  • He never once glanced either at the stereoscope, or at the page torn out of the diary.

  • Glancing cursorily into the stereoscope, he even fancied that she was averting her eyes because she was ashamed.

  • Examination with the stereoscope showed no normal binocular fusion even during normal position of the eyes.

    Schweigger on Squint | C. Schweigger
  • It is desirable to use both methods of investigation, that with the stereoscope as well as prisms, as each test has its own value.

    Schweigger on Squint | C. Schweigger
  • Spontaneous diplopia does not take place; only the right visual field is seen in the stereoscope.

    Schweigger on Squint | C. Schweigger

British Dictionary definitions for stereoscope


/ (ˈstɛrɪəˌskəʊp, ˈstɪər-) /

  1. an optical instrument for viewing two-dimensional pictures and giving them an illusion of depth and relief. It has a binocular eyepiece through which two slightly different pictures of the same object are viewed, one with each eye

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

Scientific definitions for stereoscope


[ stĕrē-ə-skōp′ ]

  1. An optical instrument through which two slightly different images (typically photographs) of the same scene are presented, one to each eye, providing an illusion of three dimensions. Modern virtual reality equipment often uses a stereoscope that presents animated, computer-generated images to the eyes, rather than photographic images.♦ A stereogram is a single pair of photographic images used in a stereograph. See also stereoscopic vision.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.