| Acronym | Meaning |
| PIES | Partial Integration Exterior Scaling (in Calcns. On Resonance Positions And Lifetimes |
| UDI | Utility Data Institute (power Generation) |
| RFQ | Radio-frequency Quadrupole |
| OFET | Organic Field Effect Transistor |
| DSLFS | Doppler-shift Laser Fluorescence Spectroscopy |
| BRS | Bibliographic Retrieval System |
| CXAES | Continuous X-ray-induced Auger Electron Spectroscopy |
| DAFLOW | Diffusion Analogy Flow [model] |
| LDA | Local-density Approximation |
| FRM | Fiber-reinforced Metals |