| Acronym | Definition |
|---|
| PNPF➣Parcul National Portile de Fier (Romanian: Iron Gates National Park) |
| PNPF➣Piqua Nuclear Power Facility |
| PNPF➣Polyornithine-Attachable Neurite Promoting Factor |
| PNPF➣Polycation-Binding Neurite-Promoting Factor (neuroscience) |
| PNPF➣Precoated with a Neurite-Promoting Factor (neuroscience) |