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fiberscope

American  
[fahy-ber-skohp] / ˈfaɪ bərˌskoʊp /

noun

Optics.
  1. an optical instrument consisting of a fiber bundle with an objective lens at one end and an eyepiece at the other, for viewing objects not accessible to direct viewing.


Etymology

Origin of fiberscope

First recorded in 1950–55; fiber + -scope

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