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.
Origin of fiberscope
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A flexible fiber-optic instrument used to view an object or area, such as a body cavity, that would otherwise be inaccessible.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.