| Acronym | Meaning |
| NDDN | National Dry Deposition Network (US EPA) |
| SET | Single Electron Transfer |
| EMTIC | Emission Measurement Technical Information Center |
| DEFT | Driven Equilibrium Fourier Transform |
| APDG | Antisymmetrized Product Of Delocalized Geminals (wave Function) |
| HOE | Holographic Optical Element |
| TIGR | The Institute For Genomic Research |
| AAU | Amendment To Allege Use |
| NVSS | NRAO VLA Sky Survey |
| CMX(2) | Second-order Connected Moments Expansion (method For Calcg. Correlation Energies Of Mols.) |