mon·​oc·​u·​lar | \ mä-ˈnä-kyə-lər How to pronounce monocular (audio) , mə- \

Definition of monocular

 (Entry 1 of 2)

1 : of, involving, or affecting a single eye
2 : suitable for use with only one eye



Definition of monocular (Entry 2 of 2)

: a monocular device

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Other Words from monocular


monocularly adverb

Examples of monocular in a Sentence

Recent Examples on the Web: Adjective The project kicked off in 2019 to replace the military branches' old monocular system with updated binoculars. Washington Post, 24 May 2021 Swarovski, source of some of the world's finest binoculars and spotting scopes, has done that with its 8x25 dG digital guide monocular. Star Tribune, 23 Feb. 2021 Get a clearer, bigger picture of the world around you with this portable, lightweight monocular telescope. Popular Science, 12 Oct. 2020 Alongside impressive magnification and clarity, this monocular telescope also delivers on convenience. Popular Science, 6 Oct. 2020 Agents use a monocular scope to make note of faraway clues and read micro text with a magnifying glass. Allison Bagley, Houston Chronicle, 6 June 2018 The 2018 Acura TLX also includes AcuraWatch, a system that uses millimeter wave radar and monocular camera sensing technology to detect other vehicles as well as lane markings to help you out on the road. Terry Troy,, 20 May 2017 Recent Examples on the Web: Noun Inside was a necklace with a pendant: a shiny miniature monocular. Cynthia Ozick, The New Yorker, 14 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'monocular.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of monocular


1640, in the meaning defined at sense 1


1936, in the meaning defined above

History and Etymology for monocular


Late Latin monoculus having one eye

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Time Traveler for monocular

Time Traveler

The first known use of monocular was in 1640

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Statistics for monocular

Last Updated

7 Jun 2021

Cite this Entry

“Monocular.” Dictionary, Merriam-Webster, Accessed 24 Jun. 2021.

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More Definitions for monocular


mon·​oc·​u·​lar | \ mä-ˈnäk-yə-lər, mə- How to pronounce monocular (audio) \

Medical Definition of monocular

1 : of, involving, or affecting a single eye monocular vision
2 : suitable for use with only one eye a monocular microscope

Other Words from monocular

monocularly adverb

More from Merriam-Webster on monocular Encyclopedia article about monocular


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