| Acronym | Meaning |
| SLMO | Symmetry-adapted Localized Molecular Orbital |
| WBEPM | Weakest Bound Electron Potential Model (theory In Calcns. Of Ionization Potentials) |
| NTIMS | Negative Thermal Ionization Mass Spectrometry |
| HERL | Health Effects Research Laboratory |
| LASCO | Large Angle Spectroscopic Coronograph |
| EER | Excess Emission Report |
| TO | Topological Orbital (in Graph Theory Of Molecules) |
| HPDM | Hybrid Plume Dispersion Model (air Quality) |
| CBE | Chemical Beam Epitaxy |
| PROX | Preferential CO Oxidn. |