| Acronym | Meaning |
| IAH | International Association Hydrogeologists |
| SPV | Surface Photovoltage |
| STO NG | (n = A Number) Slater Type Orbitals Obtained By Using N Gaussian Functions |
| RP/C | Reinforced Plastics/composite |
| ESRIN | European Space Research Institute |
| VSTA | Virus-Serum-Toxin Act |
| QPD | Quadrature Phase Detection |
| DCEL | Direct Current Electroluminescent |
| CRF | Corticotropin-releasing Factor |
| LAER | Lowest Achievable Emission Rate |