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Definition of periscope

periscope

/ˈpɛr.ə.skoʊp/
Adverb:periscopically
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Plural:periscopes
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Adjective:periscopic
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Past Simple:periscoped
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Past Participle:periscoped
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Present Participle:periscoping
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periscope Lexical Profile

periscope Game Scores & Validity

• noun

1

An optical instrument containing lenses and mirrors or prisms, used for viewing objects that are above the level of direct sight or in an obstructed field of vision, characteristically used in submarines.

Example

"The submarine commander peered through the periscope to check for ships on the surface before initiating the ascent."


2

A tubular device used in armored vehicles or trenches to safely observe the surrounding environment without exposing the observer.

Example

"During the conflict, soldiers relied on a simple periscope to monitor the battlefield safely from within the trench."

Synonyms
View all synonyms for periscope

• verb

1

To rise up or extend one's head or body to look around from a lower or concealed position (especially in reference to animals scanning their surroundings).

Example

"The prairie dog periscoped from its burrow to scan the horizon for potential predators."

• Rhymes for periscope

Word Origin & Etymology

Coined in the early 19th century from the Greek prefix 'peri-' (around) and the Greek verb 'skopein' (to look at). It gained widespread usage with the development of modern submarines in the early 20th century.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Periscope. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/periscope
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