| Acronym | Meaning |
| ROSS | River Oil Spill Simulation |
| PHEMT | Pseudomorphic High Electron Mobility Transistor |
| OPCW | Organization For Prohibition Of Chemical Weapons |
| BSSEC | Basis-set Superposition Error Correction |
| AMIP | Atmospheric Model Intercomparison Project |
| MAREMF | MARtian Electrons And Magnetic Field |
| DOCA | Deoxycorticosterone Acetate |
| MCHF-BP | Multiconfiguration Hartree-Fock Breit-Pauli |
| SAPHIR | Spectrometer Arrangement For Photon Induced Reactions |
| BSO | Basic Symmetric Operator (in Second-quantization Calculations) |