![](https://webarchive.library.unt.edu/eot2008/20090514065325im_/http://www.cancer.gov/images/spacer.gif) |
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(sig-MOY-doh-skope)
![](https://webarchive.library.unt.edu/eot2008/20090514065325im_/http://www.cancer.gov/images/spacer.gif)
| A thin, tube-like instrument used to examine the inside of the colon. A sigmoidoscope has a light and a lens for viewing and may have a tool to remove tissue. |
Previous Definitions: | side effect, side-to-end coloanal anastomosis, sideropenic dysphagia, SIDS, sigmoid colon | Next Definitions: | sigmoidoscopy, signal transduction, signal transduction inhibitor, signaling pathway, signature molecule |
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![](https://webarchive.library.unt.edu/eot2008/20090514065325im_/http://www.cancer.gov/images/spacer.gif) |