peri·​scope | \ ˈper-ə-ˌskōp How to pronounce periscope (audio) \

Definition of periscope

: a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view

Illustration of periscope

Illustration of periscope

Examples of periscope in a Sentence

Recent Examples on the Web

The new periscope telephoto camera offers 10x hybrid zoom and up to 50x digital zoom. Michael Simon, PCWorld, "Huawei’s P30 Pro goes toe-to-toe with the Samsung Galaxy S10+ on power, price, and photography," 26 Mar. 2019 Other than Oppo, Vivo had a periscope-like pop-up selfie camera on the Nex in 2018, Xiaomi introduced the slider-equipped Mi Mix 3, and Honor also released the notch-killing Magic 2. Vlad Savov, The Verge, "2018 was a weird notch year — what’s next?," 18 Dec. 2018 Designed for reconnaissance and combat behind enemy lines while collecting intelligence, it is loaded up with both serious armor, hard-hitting weapons, advanced optics, three periscopes and much, much more. Allison Barrie, Fox News, "Formidable 'Jaguar' recon vehicle revealed, touts powerful cannon and anti-tank missiles," 18 June 2018 The periscope/camera apparatus was custom-built by Israeli experience designer Saron Paz. Sam Whiting, San Francisco Chronicle, "Periscope at Pier 27 peeks into Israel, live, from across the world," 31 May 2018 Pyramidal cells shoot one thick dendrite up to the brain’s surface, like a periscope. Jacqueline Detwiler, Popular Mechanics, "The Heroes of Science Who Are Unlocking the Brain," 3 Oct. 2018 Social media’s periscope into far-flung destinations—not to mention her own peripatetic moves from Marseilles to Brussels and now Paris—has allowed her to honor cultural differences while celebrating what’s common to all of us. Vogue, "How These 12 Boundary-Breaking Designers Continue to Think Globally," 13 Aug. 2018 This airplane periscope is the invention of Albert C. Randolph, an employe of the Ryan aircraft company, who has applied for patents., "April 29, 1927: Spirit of St. Louis takes flight," 29 Apr. 2018 And although Cale might have the money and the more advanced gear, Sean is quick on his feet, snapping FaceTime screenshots or using his camera as a periscope. Katie Walsh, kansascity, "‘Bad Samaritan’ makes its crazy story work | The Kansas City Star," 3 May 2018

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

1879, in the meaning defined above

History and Etymology for periscope

International Scientific Vocabulary

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Statistics for periscope

Last Updated

8 Apr 2019

Look-up Popularity

Time Traveler for periscope

The first known use of periscope was in 1879

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More Definitions for periscope



English Language Learners Definition of periscope

: a long tube that contains lenses and mirrors and that is used to look over or around something and especially by a person in a submarine to see above the surface of the water


peri·​scope | \ ˈper-ə-ˌskōp How to pronounce periscope (audio) \

Kids Definition of periscope

: an instrument containing lenses and mirrors by which a person (as on a submarine) can get a view that would otherwise be blocked

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More from Merriam-Webster on periscope

Rhyming Dictionary: Words that rhyme with periscope

Spanish Central: Translation of periscope

Nglish: Translation of periscope for Spanish Speakers Encyclopedia article about periscope

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a secret plot to overthrow a government

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