| Acronym | Meaning |
| DLD | Decoupled L-dominant Method (in Inelastic-scattering Calcns. |
| MFE | Mercury Film Electrode |
| CIT | Cylindrical Ion Trap |
| HALT | Hydrate Addition At Low Temperature (for Sulfur Dioxide Removal From Flue Gases) |
| MWM | Meandering Winding Magnetometer |
| RATM | Renormalized Average T-matrix (for D.-of-states Calcns.) |
| GPEF | Generalized Potential Energy Function |
| GPR | Ground-penetrating Radar |
| LAI | Leukocyte Adherence Inhibition |
| GCFR | Gas-cooled Fast Reactor |