Illustration of periscope
periscope
noun
peri·scope
ˈper-ə-ˌskōp 
: a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view
Examples of periscope in a Sentence
Recent Examples on the Web
The setup includes a main sensor, an ultrawide macro lens, and a 3x periscope telephoto camera.
—
Aamir Khollam, Interesting Engineering, 7 Jan. 2026
Nikola Jokić is a time-bending honey drip with periscope vision.
—Steven Louis Goldstein, New York Times, 11 Nov. 2025
This image captured through a submarine periscope shows a hit on a sea target after a United States B-2 bomber drops a QUICKSINK bomb over the Norwegian Sea on September 3, 2025.
—Ryan Chan, MSNBC Newsweek, 11 Sep. 2025
Unique dual-periscope zoom system.
—Paul Monckton, Forbes.com, 18 Aug. 2025
See All Example Sentences for periscope
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Aamir Khollam, Interesting Engineering, 7 Jan. 2026
Nikola Jokić is a time-bending honey drip with periscope vision.
—Steven Louis Goldstein, New York Times, 11 Nov. 2025
This image captured through a submarine periscope shows a hit on a sea target after a United States B-2 bomber drops a QUICKSINK bomb over the Norwegian Sea on September 3, 2025.
—Ryan Chan, MSNBC Newsweek, 11 Sep. 2025
Unique dual-periscope zoom system.
—Paul Monckton, Forbes.com, 18 Aug. 2025
See All Example Sentences for periscope
Cite this Entry
“Periscope.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periscope. Accessed 11 Jan. 2026.
Copy CitationKids Definition
periscope
noun
peri·scope
ˈper-ə-ˌskōp
: an instrument containing lenses and mirrors by which an observer (as on a submerged submarine) can get a view that would otherwise be blocked
periscopic
adjective
ˌper-ə-ˈskäp-ik
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