| Acronym | Meaning |
| BMEP | Brake Mean Effective Pressure |
| PLL | Phase Locked Loop |
| XTM | X-ray Tomographic Microscopy |
| SPELL | Spectral Eulerian Lagrangian Model |
| CD | Coulomb Dipole (in Electron-atom Impact Ionization Calcns.) |
| ICM | Intracluster Medium |
| ROSE | Residual Organic Substance Emissions |
| NLXC | Nonlocal Exchange Correlation (potential) |
| NBII | National Biological Information And Infrastructure |
| MIPAES | Microwave-induced Plasma Atomic Emission Spectrometry |