| Acronym | Meaning |
| APS | Air Plasma Spraying |
| MBIE | Mixed-bed Ion Exchange |
| UGF | Unitary-group Formulation (in Many-body Quantum Theory) |
| DEF | Dose Effect Factor |
| LCIF | Linear Combination Of Interacting Forces |
| FSOT | Fused Silica Open Tubular |
| ESID | Environmental Statistics And Information Division |
| VHSIC | Very High Speed Integrated Circuit |
| MASER | Microwave Amplification By Stimulated Emission Of Radiation |
| AEM | Analytical Electron Microscopy |