| Acronym | Meaning |
| PBMS | Particle Beam Mass Spectrometry |
| MR-MP | Multireference Moeller-Plesset (perturbation Theory) |
| WCA | Water Conservation Area(s) |
| BGA | Bundesgesundheitamt (German Health Ministry) |
| QAFM | Quantum Antiferromagnetic Heisenberg Model |
| BMC | Benchmark Concentration |
| AMDI | Atom Monopole-dipole Interaction |
| SUP-CI | Superdirect CI |
| LSP | Liquid-stabilized Plasma |
| SCCF | Self-consistent Continued Fraction |