borescope

English

Alternative forms

• boroscope

Etymology

From bore +‎ -scope.

Noun

borescope (plural borescopes)

1. An optical instrument used for seeing inside tight spaces, consisting of a rigid or flexible tube with an optical relay inside so that the view through a lens or window at one end of the tube may be seen from a lens or eyepiece in the opposite end of the tube.

See also

• endoscope
• periscope
• videoscope