| Acronym | Meaning |
| NREL | National Renewable Energy Laboratory (formerly SERI) |
| ASPRS | American Society Of Photogrammetry And Remote Sensing |
| ZPC | Zero-point (energy) Corrections |
| L2 | Square Integrable (wave Function) (in Electron-atom Or -mol. Collisions) |
| CHELPG | CHarges From ELectrostatic Potential |
| ISI | Information Systems Inventory |
| OAW | Oxyacetylene Welding |
| EMEA | European Medicines Evaluation Agency |
| ANPP | Aboveground Net Primary Production |
| BMP | Biochemical Methane Potential |