an instrument for examining the colon, consisting of a flexible lighted tube that is inserted in the colon to look for abnormalities and to remove them or take tissue samples
Derived forms
colonoscopy (ˌkɒlənˈɒskəpɪ)
noun
Word origin
C20: from colon2 + -o- + -scope
colonoscope in American English
(kəˈlɑnəˌskoʊp)
noun
a fiber-optic endoscope used to examine the inside of the colon and also, often, to take tissue samples