Definition of binocular in English:



  • Adapted for or using both eyes:

    ‘a binocular microscope’
    • ‘He was exempted from military service because of a detached retina, and later in his career, when binocular microscopes became the norm, people puzzled why he was happy to still use a monocular one.’
    • ‘I had an opportunity to use the new Leupold Wind River RB800 combination binocular and range finding optics for this trip.’
    • ‘We calculated a mean of three measures for each size parameter that were done with a binocular microscope with x60 magnification.’
    • ‘The epidermis was spread out on a glass plate beneath a low-power binocular microscope and cut into pieces of the required size using a combination of razor and scalpel blades.’
    • ‘Anthers were dissected under a binocular microscope and pollen was gently squashed in staining solution under a coverslip.’
    • ‘Watching a person come straight toward you up a rope produces a weird binocular effect, like she's tunneling at you through thin air.’
    • ‘The researchers measured the binocular visual field of healthy volunteers while they were wearing four different styles of anorak.’
    • ‘Method and apparatus for determining binocular affine disparity and affine invariant distance between two image patterns’
    • ‘The monocular produced a very bright, clear image, however, and we assume the binocular model of the same power, which does have eyecups, would too.’
    • ‘This would be the bird remains, after cleaning the feathers in Xylene and mounting the fragments on a microscope slide, using my Nikon binocular microscope, I could tell what the bird was.’
    • ‘The residues were dried and we used the 20-125 m fraction to pick specimens under a binocular microscope.’
    • ‘When the plants flowered, buds of different developmental stages were removed from the main inflorescence and the petals were dissected from the flower bud under a binocular microscope.’
    • ‘Mineral concentrates were obtained by conventional mineral separation techniques and finally hand-picked under a binocular microscope.’
    • ‘Frequently, examination of a fracture face with a low-power binocular microscope can reveal the type and cause of failure.’
    • ‘Jared adjusted the binocular settings and zoomed in.’
    • ‘All linear measurements were made in millimeters under a binocular microscope at magnifications from 10 to 50 times.’
    • ‘These research microscopes often have binocular eyepieces, relying upon a series of prisms to split the image so that it may be viewed with both eyes.’
    • ‘Shallus could never have imagined that two centuries later conservators would peer through a binocular microscope to examine his pen strokes.’
    • ‘The shift from the field-glass, or binocular telescope, to the magic lantern, announces a redefinition of the realist project.’
    • ‘Watkins enlarged upon this binocular disparity by tweaking the lenses further apart than was normal to arrive at even more drastic perspectival jumps.’


Early 18th century (in the sense ‘having two eyes’): from Latin bini two together + oculus eye, on the pattern of ocular.