| Acronym | Meaning |
| FAO | Food And Agriculture Organization |
| NEE | Net Ecosystem Exchange |
| BART | Biological Activity Reaction Test |
| SEXAFS | Surface-extended X-ray Absorption Fine Structure |
| MLD | Median Lethal Dose |
| PAAP | Platelet Aggregation-associated Protein |
| PIAC | Polymer Industrial Advisory Council |
| PRTD | Proportional Residence Time Distribution (of Liquid Streams In Equalization Basins In WWT) |
| ANP | Atrial Natriuretic Peptide |
| ZDC | Zero-degree Calorimeter |