| PRE | Polycomb Response Element |
|---|---|
| pre | precursor |
| PRE | progesterone response element |
| pre-BCR | Pre-B cell receptor |
| Pre-BotC | Pre-Botzinger complex |
| Pre-I | Pre-Inspiratory |
| pre-mRNA | Precursor mRNA |
| pre-mRNA | pre-messenger RNA |
| pre-mRNA | precursor messenger RNA |
| pre-RC | pre-replicative complex |
| PEP | 1/pre-ejection period |
|---|---|
| PE | Pre-eclampsia |
| PET | Pre-eclamptic toxaemia |
| PEPI | Pre-ejection period index |
| PGD | Pre-implantation Genetic Diagnosis |