| Acronym | Meaning |
| OFPT | Operator Form (of) Perturbation Theory |
| MOFAT | Multi Phase Flow And Transport |
| VGAO | Variable Gage Atomic Orbital |
| PPE | Porcine Pancreatic Elastase |
| MQL | Minimum Quantifiable Limit |
| MMMF | Man-Made Mineral Fiber |
| ACPQ | Approx. Coupled-pair (theory Cor. For Connected) Quadruply (excited Clusters) |
| SCRAM | Short-Cut Risk Assessment Method |
| ODMR | Optically Detected Magnetic Resonance |
| PMN | Lead Magnesium Niobate |