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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Stargazers hoping to explore the majesty of the lunar surface for themselves should read our roundups of the best telescope and binocular deals, while those new to navigating the night sky should check out our guide to the top smartphone stargazing apps available in 2025. Anthony Wood, Space.com, 26 Aug. 2025 Their ‘Rare Handcrafts’ models showcase the delicate art of hand engraving under a binocular microscope, creating a newfound appreciation for the meticulous work of jewelry and watchmakers. Anna Haines, AFAR Media, 23 July 2025
Noun
Check out our other guides to the best telescopes, binoculars, cameras, star projectors, drones, lego and much more. Paul Brett, Space.com, 2 Sep. 2025 Use binoculars to reveal the Beehive’s delicate stars and help find Mercury. Jamie Carter, Forbes.com, 1 Sep. 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 9 Sep. 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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