borescope

/ˈbɔrəˌskoʊp/
noun
  1. A long, thin instrument with a camera and light used to look inside narrow or hard-to-reach spaces, such as pipes, engines, or medical cavities.
    • The mechanic used a borescope to inspect the inside of the engine without taking it apart.
    • Doctors sometimes use a borescope to examine a patient's throat or ear canal.
    • The plumber inserted a borescope into the pipe to find the blockage.
Synonyms
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