What is the meaning of Periscope?

(n.) an optical instrument of tubular shape containing an arrangement of lenses and mirrors (or prisms), allowing a person to observe a field of view otherwise obstructed, as beyond an obstructing object or (as in submarines) above the surface of the water.
(n.) A general or comprehensive view.

Webster's Revised Unabridged Dictionary

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APA	Webster's. (2011). periscope. Retrieved September 21, 2026, from http://smartdefine.org/periscope/definitions/2043916
Chicago	Webster's. 2011. "periscope" http://smartdefine.org/periscope/definitions/2043916 (accessed September 21, 2026).
Harvard	Webster's 2011, periscope, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/periscope/definitions/2043916>.
MLA	Webster's. "periscope" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/periscope/definitions/2043916>

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