| Acronym | Meaning |
| OHAO | Orthogonalized Hybrid Atomic Orbital |
| CFSO | Crystal Field Surface Orbital |
| GWF | Generalized Wannier Function |
| APC | Air Pollution Control |
| IMP | Inosine 5'-phosphate |
| RMP | Restricted Moeller-Plesset |
| CD-SCSAG | Centrifugal Dominant-small Curvature Semiclassical Adiabatic Ground State (tunneling Approxn.) |
| MRLV | Mobile Raman Lidar Van |
| EEL | Environmental Exposure Levels |
| FEA | Finite-element Analysis |