| Acronym | Meaning |
| SPICE | Simulation Program With Integral Circuit Emphasis |
| ODEX | Optical Dynamics Experiments |
| RCCSD | (spin) Restricted CCSD |
| COCP | Cut-off Coulomb Potential |
| BSPT | Blizzard Santry Perturbation Theory |
| LEP | Local Electron Pair (model For Intra- & Intermol. Interactions) |
| EMMC | Environmental Monitoring Management Council |
| MCXD | Magnetic Circular X-ray Dichroism |
| PICI | Positive-ion Chemical Ionization |
| HAC | High Alumina Cement |