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  2. PERISCOPE definition: 1. a long, vertical tube containing a set of mirrors that gives you a view of what is above you…. Learn more.

  3. Periscope definition: 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. See examples of PERISCOPE used in a sentence.

  4. The meaning of PERISCOPE is a tubular optical instrument containing lenses and mirrors by which an observer obtains an otherwise obstructed field of view.

  5. en.wikipedia.org › wiki › PeriscopePeriscope - Wikipedia

    A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. [ 1 ] [ 2 ] In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle.

  6. 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 esp. in submarines. 2. a periscopic lens.

  7. A periscope is a tool you use to see things that would otherwise be hidden or obstructed. If you've ever been stuck in a submarine, curious about what's going on above water, then you've needed a periscope.

  8. periscope. noun. /ˈperɪskəʊp/. /ˈperɪskəʊp/. a device consisting of a long tube containing mirrors that enable the user to see over the top of something, used especially in a submarine (= a ship that can operate underwater) to see above the surface of the sea Topics Transport by water c2.

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