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(proh-LIH-fuh-RAYT-ing)
![](https://webarchive.library.unt.edu/eot2008/20090514041331im_/http://www.cancer.gov/images/spacer.gif)
| Multiplying or increasing in number. In biology, cell proliferation occurs by a process known as cell division. |
Previous Definitions: | progression, progression-free survival, progressive disease, prolactin, Proleukin | Next Definitions: | proliferative index, prolymphocytic leukemia, Promacta, promegapoietin, ProMune |
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