| Acronym | Meaning |
| IHO | International Hydrographic Association |
| LOSC | Law Of The Sea Convention |
| PAA | Photon Activation Analysis |
| BMAS | Barium Magnesium Aluminosilicate |
| RNA | Ribonucleic Acid |
| ICTA | International Confederation Of Thermal Analysis |
| MIES | Metastable Impact Electron Spectroscopy |
| PISA | Pharmaceutical Information Systems Association |
| SALQR | Successive Approximation Linear Quadratic Regulator (for Groundwater Management) |
| SAEST | Society For Advancement Of Electrochemical Science And Technology |