binocular

1 of 2

adjective

bin·​oc·​u·​lar bī-ˈnä-kyə-lər How to pronounce binocular (audio) bə- How to pronounce binocular (audio)
: of, relating to, using, or adapted to the use of both eyes
binocularity noun
binocularly adverb

binocular

2 of 2

noun

bin·​oc·​u·​lar bə-ˈnä-kyə-lər How to pronounce binocular (audio) bī- How to pronounce binocular (audio)
1
: a binocular optical instrument
2
: a handheld optical instrument composed of two telescopes and a focusing device and usually having prisms to increase magnifying ability
usually used in plural

Examples of binocular in a Sentence

Recent Examples on the Web
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Adjective
Using active binocular infrared imaging technology, and a RGB camera, the robot vacuum can create 3D models in real time to identify obstacles—even in the dark. Terri Williams, Architectural Digest, 23 Apr. 2025 Stay safe: How to check and use solar glasses More top deals: Celestron telescope & binocular deals Best solar viewing deals 2025 Today's best solar viewing deals Buying advice: Saving and staying safe. Chris McMullen, Space.com, 19 Mar. 2025
Noun
Authorities in helicopters assessed roughly 2,200 koalas individually using binoculars. Sarah Kuta, Smithsonian Magazine, 25 Apr. 2025 Members of the public are welcome to hang out on the patio with their binoculars, as more eyes help spot more whales. Jaclyn Cosgrove, Los Angeles Times, 24 Apr. 2025 See All Example Sentences for binocular

Word History

First Known Use

Adjective

1679, in the meaning defined above

Noun

1861, in the meaning defined at sense 1

Time Traveler
The first known use of binocular was in 1679

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Cite this Entry

“Binocular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/binocular. Accessed 3 May. 2025.

Kids Definition

binocular

1 of 2 adjective
bin·​oc·​u·​lar bī-ˈnäk-yə-lər How to pronounce binocular (audio)
bə-
: of, relating to, using, or adapted to the use of both eyes
binocular vision

binocular

2 of 2 noun
bin·​oc·​u·​lar bə-ˈnäk-yə-lər How to pronounce binocular (audio)
bī-
1
: a binocular optical instrument
2
: a handheld instrument for seeing at a distance that consists of two telescopes, a focusing device, and usually prisms
usually used in plural
a pair of binoculars

Medical Definition

binocular

1 of 2 adjective
bin·​oc·​u·​lar bī-ˈnäk-yə-lər, bə- How to pronounce binocular (audio)
: of, relating to, using, or adapted to the use of both eyes
binocular vision
a binocular microscope
binocularly adverb

binocular

2 of 2 noun
bin·​oc·​u·​lar bə-ˈnäk-yə-lər, bī- How to pronounce binocular (audio)
: a binocular optical instrument

More from Merriam-Webster on binocular

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