endoscope

[en-duh-skohp]
noun Medicine/Medical.
a slender, tubular optical instrument used as a viewing system for examining an inner part of the body and, with an attached instrument, for biopsy or surgery.

Origin:
1860–65; endo- + -scope

endoscopic [en-duh-skop-ik] , adjective
endoscopist [en-dos-kuh-pist] , noun
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World English Dictionary
endoscope (ˈɛndəʊˌskəʊp)
 
n
a long slender medical instrument used for examining the interior of hollow organs including the lung, stomach, bladder, and bowel
 
endoscopic
 
adj
 
endoscopist
 
n
 
en'doscopy
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

endoscope en·do·scope (ěn'də-skōp')
n.
An instrument for examining visually the interior of a bodily canal or hollow organ such as the colon, bladder, or stomach.


en'do·scop'ic (-skŏp'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
endoscope   (ěn'də-skōp')  Pronunciation Key 
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)
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The firm's engineers are developing a machine that is inserted through the
  urethra in the same way as an endoscope.
Now they can, thanks to a new, incredibly small endoscope.
The surgery will be done with tools placed through the endoscope.
Both procedures involve snaking a fiberoptic tube called an endoscope through
  the rectum to view the lining of the colon.
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