| Acronym | Meaning |
| IFFD | Intermittently Fed Fill And Draw System |
| FPLS | Field-programmable Logic Switch |
| LAAFS | Laser Ablation Atomic Fluorescence Spectroscopy |
| VPM | Variable Phase Method (for Electron-atom Scattering Calcns.) |
| PT2F | Second-order Perturbation Theory (with) Fock (matrix) |
| CERES | Cloud And The Earth's Radiant Energy System |
| CRIOSA | Classical Reactive Infinite Order Sudden Approxn. |
| POSCO | Pohang Steel Company |
| PICA | Picosecond Imaging Circuit Analysis |
| CHEMFET | Chem. Modified Field Effect Transistor |