| Acronym | Meaning |
| IPA | Inverted Perturbation Approach (in Mol. Potential-energy Curves Calcn.) |
| QCISDT | Quadratic CI (with) Single (and) Double (and) Triple (excitations) |
| SLM | Spatial Light Modulator |
| SUMO | Small Ubiquitin-related Modifier |
| AITP | Affinity Isotachophoresis |
| HGAAS | Hydride Generation Atomic Absorption Spectrometry |
| SCCO2 | Supercritical Carbon Dioxide |
| ALWR | Advanced Light Water Reactor |
| MASER | Microwave Amplification By Stimulated Emission Of Radiation |
| DFPT | Density-functional Perturbation Theory |