en·do·scope

[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

en·do·scop·ic [en-duh-skop-ik] , adjective
en·dos·co·pist [en-dos-kuh-pist] , noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
endoscope (ˈɛndəʊˌskəʊp) [Click for IPA pronunciation guide]
 
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
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Endoscope is always a great word to know.
So is lollapalooza. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
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 robot is mounted on an endoscope which reaches the stomach via the
  patient's mouth.
Now they can, thanks to a new, incredibly small endoscope.
While looking at the esophagus with the endoscope, the doctor may perform
  biopsies in different parts of the esophagus.
Both procedures involve snaking a fiberoptic tube called an endoscope through
  the rectum to view the lining of the colon.
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