| Acronym | Meaning |
| ITC | Interagency Testing Committee (TSCA) |
| ADF | Adult T-cell Leukemia-derived Factor |
| ICMRCI | Internally Contracted MR-CI |
| BRC | Basic Regulatory Control |
| HFS | Hyperfine Structure |
| SH2 | Src-homology 2 |
| MOVFF | Modified Orbital Valence Force Field |
| TPY | Total Photon Yield |
| ESP | Electron Spin Polarization |
| CCGM | Cabrera-Celli-Goodman-Manson (at. Scattering Theory) |