| Acronym | Meaning |
| PCFB | Pressurized Circulating Fluidized Bed (gasification Apparatus) |
| RQDO | Relativistic Quantum Defect Orbital (method In Calcns. Of Oscillator Strengths) |
| EAGLE | European Association For Grey Literature Exploitation |
| RRG | Rift-related Granitoids |
| NASO | Nasmyth Adaptive Optics System |
| ISTH | International Society On Thrombosis And Hemostasis |
| HIFU | High-intensity Focused Ultrasound |
| DEM | Distinguishable Electron Method |
| HVPE | Hydride Vapor Phase Epitaxy |
| ISCAT | Investigation Of Sulfur Chemistry In The Antarctic Troposphere |