Binocular



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.
involving both eyes:
binocular vision.
Historical Examples

Tonio, Son of the Sierras Charles King
The Giant of the North R.M. Ballantyne
Young Folks’ Library, Volume XI (of 20) Various
Visual Illusions Matthew Luckiesh
The Works of Robert Louis Stevenson – Swanston Edition Vol. 13 (of 25) Robert Louis Stevenson
Schweigger on Squint C. Schweigger
The Grizzly King James Oliver Curwood
Schweigger on Squint C. Schweigger
Fitz the Filibuster George Manville Fenn
Villa Elsa Stuart Henry

adjective
involving, relating to, seeing with or intended for both eyes: binocular vision
adj.
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.

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