| Acronym | Meaning |
| ISCA | Ionization Spectroscopy For Chemical Analysis |
| MLSCN | Molecular Libraries Screening Centers Network |
| WHPA | Wellhead Protection Areas |
| AR | Attributive Risk |
| HMG | High Mobility Group |
| ASA | Alternancy Symmetry Adapted (method For Spin-independent Hamiltonians For Alternant Hydrocarbons) |
| AGR | Advanced Gas-cooled Reactor |
| MPRSA | Marine Protection |
| ERT | Estrogen Replacement Therapy |
| EAS | Exposure Assessments |