| Acronym | Meaning |
| OEM | Original Equipment Manufacturer |
| VPS | Vacuum Plasma Spraying |
| DMA | Differential Mobility Analyzer |
| PIS | Penning Ionization Spectroscopy |
| PEM | Parametric Equations Of Motion |
| ITS | Inelastic Tunnelling Spectroscopy |
| RSMST | Real-space Multiple-scattering Theory (in Electronic Structure) |
| FTHFB | Finite-temperature Hartree-Fock-Bogolyubov |
| ACR | Acute-Chronic Toxicity Ratio |
| GLERL | Great Lakes Environmental Research Laboratory |