1) Medical equipment 2) Optical device
Found on
https://www.crosswordclues.com/clue/borescope
A borescope (occasionally called a boroscope, though this spelling is non-standard) is an optical device consisting of a rigid or flexible tube with an eyepiece on one end, an objective lens on the other linked together by a relay optical system in between. The optical system in some instances is surrounded by optical fibers used for illumination ...
Found on
http://en.wikipedia.org/wiki/Borescope
an instrument using optical fibers for the visual inspection of narrow cavities, as the bore of a gun.
Found on
https://www.infoplease.com/dictionary/borescope
No exact match found.
