- 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.
The eyepiece of a periscope.Licensed from iStockPhoto
- a periscopic lens
- 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.
Origin: peri- plush -scope
Used by arrangement with John Wiley & Sons, Inc.
- perˌi·scopˈic , perˌi·scopˈi·cal adjective
periscope - Science Definition
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