| Prolaktin | prolactin |
| Proletin | Philistine |
| proaktiv | proactive |
| Probandin | guinea pig |
| Prophetin | prophet |
| Protektion | patronage |
| Produktion | production |
| Projektil | projectile |
| Projektion | projection |
| Prolin | proline |
| produktiv | productive |
| Praktik | practice |
| Aeronautin | aeronaut |
| Kroatin | Croatian |
| Platin | platinum |
| Profanation | desecration |
| Prokyon | Procyon |
| Prolepsis | prolepsis |
| Propadien | propadiene |
| Propanon | acetone |