- 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.
Origin of binocular
Examples from the Web for binocular
Considered in relation to the Philosophy of Binocular Vision.
A field glass or a Bausch & Lomb binocular is really a necessity.Our Bird Comrades
Leander S. (Leander Sylvester) Keyser
The Captain applied his binocular telescope to his eyes as he spoke.The Giant of the North
Poole re-focussed the binocular, but it was some moments before he spoke.Fitz the Filibuster
George Manville Fenn
It was like seven binocular glasses rolled into one telescope.The Pirate City
- involving, relating to, seeing with or intended for both eyesbinocular vision
Word Origin and History for binocular
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.
- Adapted to the use of both eyes. Used of an optical instrument.
- Relating to or involving both eyes at once, as in binocular vision.
- 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.