| Acronym | Meaning |
| APSTNG | Associated-particle Sealed-tube Neutron Generator |
| APHIS | Animal And Plant Health Inspection Service |
| GCL | Geosynthetic Clay Liner |
| QAP | Quality Assurance Plan |
| SBIG | Subject-based Information Gateway |
| PRISM | Parameter-related Internal Standard Method |
| POPCORN | Photo-Oxidant Formation By Plant Emitted Compds. And OH Radicals In North-Eastern Germany |
| MOPW | Modified Orthogonalized Plane Wave |
| ZPVE | Zero-point Vibrational Energy |
| SOGVB | Strongly-orthogonal Generalized Valence-bond (wave Function) |