| Acronym | Meaning |
| SCM | Shell-correction Method (in Calcns. For Metal Clusters) |
| EIG | Electrostatic Ion Guide |
| TER | Total External Reflection |
| RGTO | Rheotaxial Growth And Thermal Oxidation |
| LCLS | Linac Coherent Light Source |
| VACE | Vacancy Affinity Capillary Electrophoresis |
| SFMS | Sector Field Mass Spectrometry |
| CWTM | Compound Weaire-Thorpe Model (in Electronic-structure Calcns.) |
| LAICP | Laser Ablation Inductively Coupled Plasma |
| RACT | Reasonably Available Control Technology |