| Acronym | Meaning |
| SCF MO | Self-consistent Field Molecular Orbital |
| IEAES | Ion Excited Auger Electron Spectroscopy |
| SRC | Synchrotron Radiation Center |
| FWPCA | Federal Water Pollution Control Act Of 1972 |
| CCGM | Cabrera-Celli-Goodman-Manson (at. Scattering Theory) |
| CP-TAPF | Cross-polarization Using Time-averaged Precession Frequency |
| AAO | Amino Acid Oxidase |
| SLMO | Symmetry-adapted Localized Molecular Orbital |
| BALR | Broad Absorption Line Region |
| EICVOM | Equivalent Ionic Core Virtual Orbital Model |