| Acronym | Meaning |
| IPHAS | The INT/WFC Photometric H-alpha Survey Of The Northern Galactic Plane |
| NDOL(ND0-L) | Neglect Of Differential Overlap-azimutal Quantum Number (of Valence Ao's) |
| LUST | Leaking Underground Storage Tank |
| MRA | Magnetic Resonance Angiography |
| HSD | Hyperspherical Diabatic (wave Functions) |
| MAAC | Maximum Ambient Air Concentration |
| RLS | Resonance Light Scattering |
| CAP | Capacity Assurance Plan |
| CSD | Chemical Solution Deposition |
| IPAA | Instrumental Photon Activation Analysis |