borescope

noun bore·scope \ ˈbȯr-ˌskōp \

|Updated on: 4 Jul 2018

Definition of borescope

: an optical device (such as a prism or optical fiber) used to inspect an inaccessible space (such as an engine cylinder)

Recent Examples of borescope from the Web

Instead of couches and other furniture, the mobile lab has storage boxes, 13 workstations, soldering equipment, a borescope that can find defects in pipes, 3D printing equipment and devices that measure fatigue in materials.

— stephen singer, courant.com, "Goodwin College Mobile Classroom Hits The Road To Pitch Connecticut Students On Manufacturing," 18 June 2018
If that doesn’t work, drill a hole next to the lock, and insert your borescope to line up the notches by sight.

— malia wollan, New York Times, "How to Crack a Safe," 4 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'borescope.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.