| Acronym | Meaning |
| SCFA | Short Chain Fatty Acid |
| EUMAC | European Modeling Of Atmospheric Constituents |
| PSEP | Polyhedral Skeletal Electron Pair (for Metal Clusters) |
| PAFC | Phosphoric Acid Fuel Cells |
| RME | Reduced Matrix Equations |
| DIB | Dibutyl Chlorendate |
| RABITS | Rolling-assisted Biaxially Textured Substrates |
| IUVSTA | International Union Of Vacuum Science |
| AAFEB | Anaerobic Attached Film Expanded Bed |
| SCF2 | Two-electron Self-consistent Field |