| Acronym | Meaning |
| PHBTD | (number)projected-hartree-bogolyubov Tamm-dancoff(quantum Method) |
| CMR-CI | Contracted Multireference Configuration Interaction |
| ECRR | Energy-corrected Rigid-rotor Approximation |
| ANNNI | Axial Next-nearest-neighbor Ising (model Of Superstructure) |
| SWAP | Solid Waste Assistance Program |
| CPQRA | Chemical Process Quantitative Risk Assessment |
| WPT | Wave Packet Perturbation Theory |
| SSGF | Self-consistent Surface Green Function |
| HLLW | High Level Liquid Waste |
| PBIRG | Pharmaceutical Business Intelligence And Research Gro |