| Acronym | Meaning |
| FOREGS | Forum Of European Geological Surveys |
| AI | Agpaitic Index [represents The (Na2O + K2O)/Al2O3 Ratio] |
| FPA | Focal Plane Array |
| PPM | Pair Population Method |
| PAP | Prostatic Acid Phosphatase |
| PGDN | Propylene Glycol Dinitrate |
| HFET | Highway Fuel Economy Test |
| PNET | Primitive Neuroectodermal Tumor |
| PGS | Phosphosilicate Glass |
| ANSIG | Assignment Of NMR Spectra By Interactive Graphics |