单词	colonoscope
释义	colonoscope /kəˈlɒnəskəʊp / noun Medicine A flexible fibre-optic instrument inserted through the anus in order to examine the colon.Resting comfortably on one side, most people feel only a little discomfort as the colonoscope is carefully inserted into the back passage.... Your doctor will probably look inside your intestines with a sigmoidoscope or a colonoscope. However, endoscopes can only examine the upper portions of the digestive system, while colonoscopes study the lower portion, or colon.
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