| Acronym | Meaning |
| GIAO | Gage Invariant Atomic Orbital |
| CB2 | Second-order Coulomb Born |
| ASHG | American Society Of Human Genetics |
| DPC | Differential Phase Contrast |
| PSD | Particle Size Distribution |
| GLISP | Great Lakes International Surveillance Plan |
| TLM | Triple Layer Model (of Adsorption) |
| DH | Dortmund-Hoerder (German Vacuum Steel Refining) |
| EIH | Electron Ion Hybrid |
| MOR | Mid-ocean Ridge |