| Acronym | Meaning |
| PEM | Parametric Equations Of Motion |
| SOLO | Second-order Correlated Localized Orbital-local Origin (method) |
| RPP | Renal Perfusion Pressure |
| IPEM | Ion-photon Emission Microscopy |
| ICM | Inner Cell Mass |
| ECR | Electron Cyclotron Resonance |
| FPPA | Federal Plant Pest Act |
| CVM-CI | Constrained Variational Method-CI |
| SOC | Semivolatile Organic Compound |
| SOMBT | Second-order Many-body Theory |