eyepiece

noun
eye·​piece | \ ˈī-ˌpēs How to pronounce eyepiece (audio) \

Definition of eyepiece

: the lens or combination of lenses at the eye end of an optical instrument

Examples of eyepiece in a Sentence

Recent Examples on the Web The large eyepiece diameter offers a wider field of view as well. Chris Hachey, BGR, 19 May 2021 The large eyepiece diameter offers a wider field of view as well. Chris Hachey, BGR, 19 May 2021 The large eyepiece diameter offers a wider field of view as well. Chris Hachey, BGR, 19 May 2021 The oversize eyepiece lens is excellent for spotting moving objects like birds inflight or scoping out a climbing route. Everett Potter, Forbes, 18 May 2021 Celestron binoculars provide eye relief through eyecups that keep distance between your eye and the eyepiece. Daisy Kelly, chicagotribune.com, 11 Apr. 2021 Refractor telescopes usually have the eyepiece at the back end. Bob Beacham, chicagotribune.com, 9 Apr. 2021 Also displayed in the eyepiece is vital flight information, such as heading, speed and altitude, so the pilot can fly the craft without having to look down at his instruments. Sheldon M. Gallager, Popular Mechanics, 25 Mar. 2021 The large eyepiece diameter offers a wider field of view as well. Chris Hachey, BGR, 31 Mar. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'eyepiece.' 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 eyepiece

1729, in the meaning defined above

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Time Traveler for eyepiece

Time Traveler

The first known use of eyepiece was in 1729

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Statistics for eyepiece

Last Updated

18 Jun 2021

Cite this Entry

“Eyepiece.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eyepiece. Accessed 19 Jun. 2021.

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More Definitions for eyepiece

eyepiece

noun

English Language Learners Definition of eyepiece

: the part of a telescope or microscope that you look through

eyepiece

noun
eye·​piece | \ ˈī-ˌpēs How to pronounce eyepiece (audio) \

Kids Definition of eyepiece

: the lens or combination of lenses at the eye end of an optical instrument (as a microscope or telescope)

eyepiece

noun
eye·​piece | \ ˈī-ˌpēs How to pronounce eyepiece (audio) \

Medical Definition of eyepiece

: the lens or combination of lenses at the eye end of an optical instrument

called also ocular

More from Merriam-Webster on eyepiece

Nglish: Translation of eyepiece for Spanish Speakers

Britannica English: Translation of eyepiece for Arabic Speakers

Britannica.com: Encyclopedia article about eyepiece

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