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(KOH-muh)
![](https://webarchive.library.unt.edu/eot2008/20081107173248im_/http://www.cancer.gov/images/spacer.gif)
| A condition in which a patient is in a state of deep sleep and cannot be awakened. A coma may be caused by many things, including trauma, drugs, toxins, or certain diseases. |
Previous Definitions: | colorectal, colorectal cancer, colostomy, colposcope, colposcopy | Next Definitions: | combination chemotherapy, combretastatin A4 phosphate, comedo carcinoma, comfort care, common bile duct |
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