| Acronym | Meaning |
| SCM | Shell-correction Method (in Calcns. For Metal Clusters) |
| RPIPC | Reversed-phase Ion-pair Chromatography |
| MSIS | Mass Spectrometer And Incoherent Scatter |
| PNS | Peripheral Nervous System |
| MAOI | Monoamine Oxidase Inhibitor |
| BIA | Biochemical Induction Assay |
| LDS | Leak Detection System |
| MALDI | Matrix-Assisted Laser Desorption Ionization |
| GIXAS | Grazing Incidence X-ray Absorption Spectroscopy |
| MVT | Mississippi Valley-type |