| Acronym | Meaning |
| OMBE | Organic Molecular Beam Epitaxy |
| SALQR | Successive Approximation Linear Quadratic Regulator (for Groundwater Management) |
| SCCR | Self-consistent Current Relaxation (in Electronic Dynamic Structure Factor Calcns.) |
| MITI | Ministry Of International Trade And Industry (Japan) |
| GHRH | Growth Hormone-releasing Hormone |
| ZRPA | Zero-radius Potential Approximation |
| DGT | Diffusive Gradients In Thin Films |
| TCCL | Toxic Chemicals Control Law (Korea) |
| WEF | Water Environment Federation (formerly WPCF) |
| LCI-SCSCFMO | Limited Configuration Interaction Single-configuration SCF MO |