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
Future Bets Bosworth is already exploring future display models, including versions with cellular connectivity and binocular displays (screens in both lenses). Bloomberg, Mercury News, 18 Sep. 2025 That's because there is a higher concentration of retinal ganglion cells in the center of their field of vision, making vision sharper and giving such dogs binocular depth vision. Jennifer Ouellette, ArsTechnica, 18 Sep. 2025
Noun
Make sure to use solar eclipse glasses or a solar filter for telescopes or binoculars. Daisy Dobrijevic, Space.com, 21 Sep. 2025 Don’t look at the sun through any unfiltered optical device — camera lens, telescope, binoculars — while wearing eclipse glasses or using a handheld solar viewer, NASA advises. Gina Park, CNN Money, 20 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 30 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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