| Acronym | Meaning |
| AFBBR | Anaerobic Fluidized Bed Biofilm Reactor |
| LCMTO | Linear Combination Of Muffin-tin Orbitals |
| TIW | Time-independent Wave Packet |
| ITAM | Immunoreceptor Tyrosine-based Activation Motif |
| MPHF | Maximally Paired Hartree Fock |
| NIWA | National Institute For Water And Atm. Research [New Zealand] |
| PWS | Public Water System |
| PBC | Primary Biliary Cirrhosis |
| OP | Oceanic Plagiogranites |
| ERCP | Emergency Response Concept Plan |