| Acronym | Meaning |
| GCA | Generator Coordinate Approxn. |
| WMO | World Meteorological Organization |
| FOURPI | Fourier Path Integral |
| WDI | World Drug Index |
| ENAA | Epithermal Neutron Activation Analysis |
| PMP | Powder Melting Process |
| GEMMA | Gas-phase Electrophoretic Mobility Molecular Analysis |
| EDW | Exchange Distorted-wave |
| CMAS | CaO-MgO-aluminum Oxide-silicon Dioxide |
| MMS | Molecular Modulation Spectroscopy |