| Acronym | Meaning |
| EUSO | Extreme Universe Space Observatory |
| URIF | Uniformly Retreating Ice Front [in Model Of Dehydration] |
| IMF | Interplanetary Magnetic Field |
| PCA | Polar Cap Absorption |
| EAA | Environmental Assessment Association |
| AIPHOS | Artificial Intelligence For Planning And Handling Organic Synthesis |
| EEM | Excitation-emission Matrix |
| UKMO | United Kingdom Meteorological Office |
| BQMCT | Basis Quantum Monte-Carlo Theory (for Many Electron Systems) |
| SAM | Self-assembled Monolayer |