| Acronym | Meaning |
| BSA | Breathing-sphere Approxn. (for Inelastic Mol. Collisions) |
| PMN | Lead Magnesium Niobate |
| IVAP | Intimate Valence Alternation Pairs (bonding Model In Electronic Structure Calcns.) |
| CEARC | Canadian Environmental Assessment Research Council |
| IPIRDW | Independent-process (and) Isolated-resonance (approxn. Using) Distorted Waves |
| LOGS | Laser Optogalvanic Spectrometry |
| TSDW | Torsional Spin Density Wave |
| ECRIS | Electron Cyclotron Resonance Ion Source |
| RVP | Reid Vapor Pressure (used For Gasoline Volatility) |
| XMCD | X-ray Magnetic Circular Dichroism |