eyepiece

noun

eye·​piece ˈī-ˌpēs How to pronounce eyepiece (audio)
: 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 Peering through his eyepiece, Long Ben—as Avery’s crew called him on deck—made out a few dozen makeshift huts inland of the trees screening the coast. Sean Kingsley, Smithsonian Magazine, 2 Apr. 2024 This sleek smart telescope has an array of cool features, including the ability to capture scientific data, light pollution reduction technology, live-streaming capability, and a Nikon 7.7-megapixel eyepiece for optimal viewing. Micki Wagner, Popular Mechanics, 14 Apr. 2023 The focal length should be labeled somewhere on the eyepiece. Mike Lynch, Twin Cities, 14 Jan. 2024 Instead of taking turns peering through the eyepiece, up to 10 people can stargaze simultaneously with the Unistellar app. Eric Bangeman, Ars Technica, 29 July 2023 Comes with two eyepieces and a 3x Barlow lens, which can triple the power of each eyepiece for a wide range of magnifications. Allen Foster, chicagotribune.com, 22 Feb. 2021 Unlike the existing telescope, which requires visitors to climb a ladder to look through the eyepiece, the new equipment features an eyepiece that’s accessible to wheelchair users. Nicole Blanchard, Idaho Statesman, 31 Jan. 2024 The Orion Nebula This is simply wondrous through the eyepiece of your telescope. Mike Lynch, Twin Cities, 21 Jan. 2024 That’s the size of the scope’s bell—the end opposite the eyepiece—and the bigger the number, the bigger the bell. T. Logan Metesh, Field & Stream, 4 Jan. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'eyepiece.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1729, in the meaning defined above

Time Traveler
The first known use of eyepiece was in 1729

Dictionary Entries Near eyepiece

Cite this Entry

“Eyepiece.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eyepiece. Accessed 15 Apr. 2024.

Kids Definition

eyepiece

noun
eye·​piece ˈī-ˌpēs How to pronounce eyepiece (audio)
: the lens or combination of lenses at the eye end of an optical instrument (as a microscope or telescope)

Medical Definition

eyepiece

noun
eye·​piece ˈī-ˌpēs How to pronounce eyepiece (audio)
: the lens or combination of lenses at the eye end of an optical instrument

called also ocular

More from Merriam-Webster on eyepiece

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