| Acronym | Meaning |
| MDS | Metastable Deexcitation Spectroscopy |
| NSPS | New Source Performance Standards |
| WHMO | Wolfsberg-Helmholz Molecular Orbital |
| ESCPM | Electrochemical Scanning Probe Microscopy |
| ADPKD | Autosomal Dominant Polycystic Kidney Disease |
| TLS | Two-level System (with Tunneling Transitions Between Wells Of Double-well Potential) |
| IFSEM | International Federation Of Societies For Electron Microscopy |
| ACE | Alternating Conditional Expectations |
| MRCI | Multireference Configuration Interaction |
| DPC | Differential Phase Contrast |