| Acronym | Meaning |
| HPTTD | High-performance Thermophilic Two-phase Digestion |
| GGA | Generalized Gradient Approxn. |
| CAFEGE | Classically Approximated Free-electron-gas Exchange |
| COTF | Classroom Of The Future |
| CAP88-PC | Clean Air Act Assessment Package-1988 |
| DSR | Dynamic Shape Roll |
| SLP | Static Linear Polarization |
| AUBF | Anaerobic Upflow Biofilter |
| PFGSE | Pulsed Field-gradient Spin-echo |
| SSTL | Singwi Sjolander Tosi Land (interatomic Potential) |