| Acronym | Meaning |
| RHFS | Relativistic Hartree-Fock-Slater |
| ADPIC | Atmospheric Dispersion Particle-in-Cell |
| POEMS | Plasma Optical Emission Mass Spectrometer |
| HRMSI | High-Resolution Multispectral Instrument (EOS) |
| PTR | Photothermal Radiometry |
| STIB | Stratosphere-Troposphere Interactions And The Biosphere |
| BRM | Biological Response Modifier |
| ASMO | Antisymmetrical Molecular Orbital |
| IAEH | International Association For Environmental Hydrology |
| IAHE | International Association For Hydrogen Energy |