| Acronym | Meaning |
| UNS | Unified Numbering System For Metals And Alloys |
| TGN | Trans-Golgi Network |
| SQCC | Semiclassical Quantization (by) Circuit Counting |
| SLE | Systemic Lupus Erythematosus |
| MEPED | Medium Energy Proton & Electron Detector |
| RMA | Rocky Mountain Arsenal (Colorado) |
| LALA | Large Area Lyman Alpha |
| MSH | Melanocyte-stimulating Hormone |
| CADW | Converged-adiabatic Distorted-wave (quantum Calcn. Method) |
| IRLG | Interagency Regulatory Liaison Group |