| Acronym | Meaning |
| NTU | Number Of Transfer Units (in Packed Tower Aeration System) |
| BIO-FIX | Biomass Foam Immobilized Extractant |
| CDBF | Chlorinated Dibenzofurans |
| GIXA | Glancing-incidence X-ray Analysis |
| RIOSA | Reactive Infinite-order Sudden Approxn. |
| CIWEM | Chartered Institution Of Water And Environmental Management |
| BOFS | Biogeochemical Ocean Flux Study (UK) |
| COG | Coke-oven Gas |
| DAPK | Death-associated Protein Kinase |
| SMSA | Soft-core Mean Spherical Approxn. |