| Acronym | Meaning |
| FFT | Fast Fourier Transform |
| PSIM | Phase Shifting Interferential Microscopy |
| IPT | Iterated Perturbation Theory |
| ES | Energy Sudden (approxn. In Scattering Calcns.) |
| RD/RA | Remedial Design/Remedial Action |
| AML | Acute Myeloid Leukemia |
| LSDXS-SIC | Local-spin-density (with) Screened Exchange (and) Self-interactiond Correction |
| FARM | Fixed-angle Reactor Model (in Quantum Calcns. On Reactive Scattering) |
| MA | Maleic Anhydride |
| HAMR | Heat Assisted Magnetic Recording |