| Acronym | Meaning |
| ORACLE | Ozone Research Using Advanced Cooperative Lidar Experiment |
| AICD | Activation-induced Cell Death |
| RDF | Refuse Derived Fuel |
| EMPACT | Environmental Monitoring For Public Access And Community Tracking |
| RE | Recoupled States (in Orbiting Resonances Calcns. In Atom-mol. Inelastic Scattering) |
| IOSRR | Infinite Order Sudden Rigid-rotor Approximation |
| AUSB | Aerobic Upflow Sludge Blanket |
| FLAPW | Full-potential Linearized Augmented Plane Wave |
| MRA | Magnetic Resonance Angiography |
| BRNO | Best Radial Natural Orbital |