| Acronym | Meaning |
| SXES | Soft X-ray Emission Spectroscopy |
| HWD | Hazardous Waste Disposal |
| NIHHS | Notification Of Installations Handling Hazardous Substances Regulations (UK) |
| MNDO-HE | Modified Neglect Of Diatomic Overlap-half Electron |
| MCGR | Monte-Carlo Renormalization Group |
| BIF | Banded Iron-formation |
| NGF | Nerve Growth Factor |
| ABO | Antibonding Bond Orbital |
| RACS | Raw Agricultural Commodities |
| APO | Aq.-phase Oxidn. |