![](https://webarchive.library.unt.edu/eot2008/20090514051725im_/http://www.cancer.gov/images/spacer.gif) |
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(OR-ul KAN-ser)
![](https://webarchive.library.unt.edu/eot2008/20090514051725im_/http://www.cancer.gov/images/spacer.gif)
| Cancer that forms in tissues of the oral cavity (the mouth) or the oropharynx (the part of the throat at the back of the mouth). |
Previous Definitions: | optic tract, optical coherence tomography, optical spectroscopy, oral, oral and maxillofacial surgeon | Next Definitions: | oral cavity, oral cavity cancer, oral contraceptive pill, oral surgeon, orchidectomy |
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![](https://webarchive.library.unt.edu/eot2008/20090514051725im_/http://www.cancer.gov/images/spacer.gif) |