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(TROH-foh-BLAST)
![](https://webarchive.library.unt.edu/eot2008/20081029074432im_/http://www.nci.nih.gov/images/spacer.gif)
| A thin layer of cells that helps a developing embryo attach to the wall of the uterus, protects the embryo, and forms a part of the placenta. |
Previous Definitions: | trimethoprim-sulfamethoxazole, trimetrexate glucuronate, Triostat, triptorelin, Trisenox | Next Definitions: | tropisetron, troxacitabine, true lavender, TRUS, trust |
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