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binocular

[buh-nok-yuh-ler, bahy-] /bəˈnɒk yə lər, baɪ-/
noun
1.
Usually, binoculars. Also called pair of binoculars, prism binoculars. an optical device, providing good depth effect, for use with both eyes, consisting of two small telescopes fitted together side by side, each telescope having two prisms between the eyepiece and objective for erecting the image.
adjective
2.
involving both eyes:
binocular vision.
Origin
1705-1715
1705-15; bin- + ocular
Related forms
binocularity, noun
binocularly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for binocular
  • But surgeons are likely to wait for the full-colour, binocular version, which will be better for viewing medical images.
  • Our binocular vision combines the two views into one three-dimensional image.
  • In theory, binocular rivalry is a simple phenomenon.
  • We all have predator's eyes-forward facing with binocular vision-and move to the kitchen, where breakfast is prey.
  • As a result, astronomers have had to resort to a form of binocular vision called astrometry.
  • binocular vision, vision in which both eyes are used together.
British Dictionary definitions for binocular

binocular

/bɪˈnɒkjʊlə; baɪ-/
adjective
1.
involving, relating to, seeing with or intended for both eyes: binocular vision
Word Origin
C18: from bi-1 + Latin oculus 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
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Word Origin and History for binocular
adj.

1738, "involving both eyes," earlier "having two eyes" (1713), from French binoculaire, from Latin bini "two by two, twofold, two apiece" (see binary) + ocularis "of the eye," from oculus "eye" (see eye (n.)). The double-tubed telescopic instrument (1871, short for binocular glass) earlier was called a binocle. Related: Binocularity.

Online Etymology Dictionary, © 2010 Douglas Harper
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binocular in Medicine

binocular bin·oc·u·lar (bə-nŏk'yə-lər, bī-)
adj.
Adapted to the use of both eyes. Used of an optical instrument.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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binocular in Science
binocular
  (bə-nŏk'yə-lər)   

Adjective  Relating to or involving both eyes at once, as in binocular vision.

Noun  An optical device, such as a pair of field glasses, consisting of two small telescopes, designed for use by both eyes at once. Often used in the plural as binoculars.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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