A lot vs. Alot: 9 Grammatical Pitfalls
endoscope en·do·scope (ěn'də-skōp')
An instrument for examining visually the interior of a bodily canal or hollow organ such as the colon, bladder, or stomach.
A medical instrument used for visual examination of the interior of a body cavity or a hollow organ such as the colon, bladder, or stomach. It is a rigid or flexible tube fitted with lenses, a fiber-optic light source, and often a probe, forceps, suction device, or other apparatus for examination or retrieval of tissue.
endoscopy noun (ěn-dŏs'kə-pē)