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
There is no equivalent to the 5x periscope telephoto lens on Samsung's flat flagship.
—
ArsTechnica, 31 July 2025
Reflections suggest that the periscope lens has been added as one of the three main lenses at the rear.
—Ewan Spence, Forbes.com, 20 July 2025
Tour the sub, including the periscope, control room and bunk rooms, and listen to recorded stories from former crew members.
—Stacey Zable, USA Today, 28 May 2025
The periscope camera has an aperture of f/2.68 and also supports OIS, EIS, and autofocus, and includes 3x optical zoom, 6x digital zoom, and 60x ultra hybrid zoom.
—Eric Zeman, PC Magazine, 1 July 2025
See All Example Sentences for periscope
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ArsTechnica, 31 July 2025
Reflections suggest that the periscope lens has been added as one of the three main lenses at the rear.
—Ewan Spence, Forbes.com, 20 July 2025
Tour the sub, including the periscope, control room and bunk rooms, and listen to recorded stories from former crew members.
—Stacey Zable, USA Today, 28 May 2025
The periscope camera has an aperture of f/2.68 and also supports OIS, EIS, and autofocus, and includes 3x optical zoom, 6x digital zoom, and 60x ultra hybrid zoom.
—Eric Zeman, PC Magazine, 1 July 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 6 Aug. 2025.
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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