| Acronym | Meaning |
| AGA | American Gas Association |
| HSBOW | Helical Spin Bond-order Wave |
| MQMAS | Multiple-quantum Magic-angle Spinning |
| CPA | Coupled-pair Approximation |
| RAPIDS | Regional Air Pollutant Inventory Development System |
| OESO | Ordnance Environmental Support Office (Navy) |
| APES | Atomic Plasma Emission Spectroscopy |
| NRA | National Rivers Authority (UK) |
| MCSCRF | Multiconfigurational Self-consistent Reaction Field |
| CGRC | Crop Growth Research Chamber |