| Acronym | Meaning |
| ADI | Alternating Direction Implicit (method) |
| FIRST | Faint Images Of The Radio Sky At Twenty Centimeters |
| CCSD-ED | Coupled-cluster Method With Single And Double Excitations-energy Derivative |
| ECWR | Electron Cyclotron Wave Resonance |
| MORD | Magnetic Optical Rotation Dispersion |
| MCAF | Monocyte Chemotactic And Activating Factor |
| LCTF | Liquid Crystal Tunable Filter |
| IRF | Interferon Regulatory Factor |
| LPFG | Long-period Fiber Grating |
| NWC | National Water Council (UK) |