Periscope meaning

pĕrĭ-skōp
Frequency:
The definition of a periscope is a set of lenses, mirrors or prisms on a tube allowing the viewer to see objected reflected on the other end.

An example of a periscope is the viewing tool used on a submarine.

noun
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1
A form of viewing device that allows the viewer to see things at a different height level and usually with minimal visibility.
noun
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2
Any of various tubular optical instruments that contain reflecting elements, such as mirrors and prisms, to permit observation from a position displaced from a direct line of sight.
noun
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2
A periscopic lens.
noun
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2
An optical instrument consisting of a tube holding a system of lenses and mirrors or prisms, so arranged that a person looking through the eyepiece at one end can see objects reflected at the other end: used on submerged submarines, etc.
noun
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4
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An instrument that has angled mirrors or prisms and allows objects not in the direct line of sight to be seen, often used on submarines and in military reconnaissance.
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2
(intransitive) To rise and peer around, in the manner of a periscope.
verb
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Origin of periscope

  • From peri- +"Ž -scope.

    From Wiktionary