| Acronym | Meaning |
| MSO | Molecular Spin Orbital |
| BPB | Bromophenol Blue |
| TICS | Time Reversal Invariant Closed Shell (type Of Hartree-Fock Wave Function) |
| CHARM | Coupled Hydrosphere-Atmosphere Research Model |
| SAPHIR | Spectrometer Arrangement For Photon Induced Reactions |
| CCM | Coupled-cluster Method (for Energy Level Calculations) |
| IUAPPA | International Union Of Air Pollution Prevention Associations |
| CTBT | Comprehensive Test Ban Treaty |
| CSCBS | Charge-self-consistent Band-structure (method) |
| GALP | Good Automated Laboratory Practices |