| Acronym | Meaning |
| CCSDT | Coupled Cluster With Single |
| CC-DQMC | Clamped-coordinate Diffusion Quantum Monte Carlo |
| ICP | Interactive Correlation Partitioning |
| BAT | Best Available Technology |
| CCD | Coupled-cluster Doubles |
| INDO | Intermediate Neglect Of Differential Overlap |
| LNB | Low Nitrogen Oxide Burner |
| WEDM | Wire Electric Discharge Machining |
| CCPA | Constant Centrifugal Potential Approximation |
| PNGV | Partnership For A New Generation Of Vehicles |