| Acronym | Meaning |
| ARXPD | Angle Resolved X-ray Photoelectron Diffraction |
| OPC | Ordinary Portland Cement |
| DBP | Disinfection By Product |
| CITS | Current-imaging Tunneling Spectroscopy |
| HMIP | Her Majesty's Inspectorate Of Pollution |
| CRAMPS | Combined Rotation And Multiple-pulse Spectroscopy |
| MCPF+R | Modified Coupled-pair Functional (method With) Relativistic (correction) |
| NICE-OHMS | Noise-immune Cavity-enhanced Optical Heterodyne Molecular Spectroscopy |
| ULTRA | Underground Leak Transport Assessment Model |
| LID | Low Impact Developmentpar |