| Acronym | Meaning |
| PGA | Prostaglandin A |
| EXAMS | Exposure Analysis Modeling System |
| EC | Enzyme Commission |
| NNBI | Neglect Of Nonbonded Interactions |
| LREE | Light Rare Earth Element(s) |
| IUPAC | International Union Of Pure And Applied Chemistry |
| MFE | Magnetic Field Effect |
| QFAA | Quartz Furnace Atomic Absorption |
| PNN | Lead Nickel Niobate |
| OAQPSTTN | Office Of Air Quality Planning And Standards Technology Transfer Network |