| Acronym | Meaning |
| TEF | Toxicity Equivalency Factor |
| GME | Generalized Master Equation (in Quantum Statistical Mechanics) |
| CONDO | Crystal Orbital Neglect Of Differential Overlap |
| ICOLP | Industry Cooperative For Ozone Layer Protection |
| VRDDO | Variable Retention Of Diatomic Differential Overlap |
| APM | Atom Probe Microanalysis |
| SWTR | Surface Water Treatment Rule |
| CISC | Configuration Interaction (with) Size-consistency (correction) |
| PMN | Premanufacture Notice |
| FOM | Forced Oscillator Model |