| Acronym | Meaning |
| QCISD | Quadratic Configuration Interaction With Single And Double Excitation |
| IDE | Insulin Degrading Enzyme |
| HEIS | High Energy Ion Scattering |
| SEC | Sulfite Evaporator Condensate |
| SEDAC | Socioeconomic Data And Applications Center |
| EVA | Ethylene-vinyl Acetate Copolymer |
| FZP | Fresnel Zone Plate |
| SCG | Slow Crack Growth |
| CSDP | Continental Scientific Drilling Program |
| IF DRM | Inversion-free Direct Recursion Method (for Surface Electronic Structure) |