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periscopes

  • plural
    of periscope.
    periscope
    noun
    an optical instrument for viewing objects that are above the level of direct sight or in an otherwise obstructed field of vision, consisting essentially of a tube with an arrangement of prisms or mirrors and, usually, lenses: used especially in submarines.

Example Sentences

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You can sit at the controls and peer through periscopes in a submarine room removed from attack submarine USS Greenling.

From Seattle Times ● Feb. 14, 2024

The order will see Thales Glasgow continue a 100-year tradition of making periscopes for Royal Navy submarines.

From BBC ● Jul. 13, 2023

“They were using these range finders” in the periscopes, she said.

From New York Times ● Aug. 5, 2018

Still on the forbidden list: Phones, firearms, running, tipping, wearing baseball caps backward, ladders, periscopes and calling fans anything other than “patrons.”

From Washington Times ● Apr. 9, 2016

Little water snakes slipped down to the rocks and then gently entered the water and swam along through the pool, their heads held up like little periscopes and a tiny wake spreading behind them.

From "Cannery Row" by John Steinbeck

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