| Acronym | Meaning |
| OCCSD | Open-shell Coupled-cluster (with) Single (and) Double (excitations) |
| IECSC | Inventory Of Existing Chemical Substance In China |
| RRPA | Renormalized Random-phase Approxn. |
| GRP | Glass Reinforced Plastic |
| EMTO | Extended Muffin-tin Orbital Method |
| LNDO | Local Neglect Of Differential Overlap |
| BOSEX | Baltic Open Sea Experiment |
| STOIIP | Stock Tank Oil Initially In Place |
| CSML | Chemical Structure Markup Language |
| CIVB | Configuration Interaction Valence Bond |