| Acronym | Meaning |
| PIGS | Pesticides In Groundwater Strategy |
| CRBP | Cellular Retinol Binding Protein |
| HSS | High-speed Steel |
| NLMO | Nonorthogonal Localized Molecular Orbital |
| ANC | Acid Neutralizing Capacity |
| EFP | Effective Fragment Potential Method |
| EEL | Environmental Exposure Levels |
| HPIAC | High-performance Immunoaffinity Chromatography |
| IAEH | International Association For Environmental Hydrology |
| CTBT | Comprehensive Test Ban Treaty |