'Endoscopy' definitions:

Definition of 'endoscopy'

(from WordNet)
noun
Visual examination of the interior of a hollow body organ by use of an endoscope

Definition of 'Endoscopy'

From: GCIDE
  • Endoscopy \En*dos"co*py\, n. (Med.) The art or process of examination or treatment by means of an endoscope. [1913 Webster]