![](https://webarchive.library.unt.edu/eot2008/20090514063129im_/http://www.cancer.gov/images/spacer.gif) |
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(REH-troh-PAYR-ih-toh-NEE-ul)
![](https://webarchive.library.unt.edu/eot2008/20090514063129im_/http://www.cancer.gov/images/spacer.gif)
| Having to do with the area outside or behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen). |
Previous Definitions: | retinoic acid, retinoid, retinol, retinyl palmitate, retromolar trigone | Next Definitions: | retropubic prostatectomy, retrospective, retrospective cohort study, retrospective study, retroviral vector |
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![](https://webarchive.library.unt.edu/eot2008/20090514063129im_/http://www.cancer.gov/images/spacer.gif) |