| Acronym | Meaning |
| EVB | Effective Valence Bond (hamiltonian) |
| CBF | Core-binding Factor |
| SICM | Scanning Ion-conductance Microscopy |
| GMAD | Geometric Mean Aerodynamic Diameter |
| MCDF-EAL | Multiconfiguration Dirac-Fock-extended Average Level (for Energy Levels And Wave Functions Calcn. For Atoms) |
| PK | Protein Kinase |
| TDSCF | Time-dependent Self-consistent Field |
| PPB | Parts Per Billion |
| DMDS | Dimethyl Disulfide |
| KRMP2 | Kramers Restricted Moeller-Plesset Second-order (perturbation Theory) |