| Acronym | Meaning |
| RMS | Root Mean Square |
| MPRI | Multiphoton Resonance Ionization |
| UJT | Unijunction Transistor |
| ELM | Emulsion Liquid Membranes |
| FFDCA | Federal Food, Drug, And Cosmetic Act (US) |
| TILIBS | Time-integrated Laser Induced Breakdown Spectroscopy |
| SCFX-CI | Excited-state Self-consistent Field Configuration Interaction |
| SPRKKR | Spin-polarized Relativistic Korringa-Kohn-Rostoker |
| APUD | Amine Precursor Uptake And Decarboxylation |
| SC | Surface Capacitance |