| Acronym | Meaning |
| RE | Recoupled States (in Orbiting Resonances Calcns. In Atom-mol. Inelastic Scattering) |
| VDRE | Vitamin D-responsive Element |
| SRE | Serum-responsive Element |
| TSE | Transmissible Spongiform Encephalopathies |
| ECCI | Electron Channeling Contrast Imaging |
| HMM | Half Molecule Model (for Electron Scattering By Molecules) |
| ECTFP | Empty-core Thomas-Fermi Pseudopotential |
| BMDO | Ballistic Missile Defense Organization |
| GOMS | Gulf Of Mexico Seawater |
| FDM | Field Desorption Microscopy |