| Acronym | Meaning |
| VPT | Variational Perturbation Theory |
| LPG | Liquefied Petroleum Gas |
| CCD | Counter Current Decantation |
| ART | Asphalt Residual Treatment |
| ILIAC | International Library Information And Analytical Center |
| SAAP | Spin Adapted Antisymmetrized Product (in MC-SCF Theory) |
| RDQ | Reduced-dimensionality Quantum (calcn. Method) |
| ASTRAP | Advanced Statistical Trajectory Regional Air Pollution Model |
| HFI | Hyperfine Interaction |
| NKN | Sodium Potassium Niobate |