![](https://webarchive.library.unt.edu/eot2008/20090117023828im_/http://www.cancer.gov/images/spacer.gif) |
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![](https://webarchive.library.unt.edu/eot2008/20090117023828im_/http://www.cancer.gov/images/spacer.gif)
| A condition marked by extreme tiredness and inability to function due lack of energy. Fatigue may be acute or chronic. |
Previous Definitions: | Fanconi syndrome, FAP, Faslodex, fast-neutron beam radiation, fat-soluble vitamin | Next Definitions: | fatty acid, fatty-replaced breast tissue, fazarabine, FDA, FdCyd |
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![](https://webarchive.library.unt.edu/eot2008/20090117023828im_/http://www.cancer.gov/images/spacer.gif) |