| Acronym | Meaning |
| CCI | Contracted Configuration Interaction |
| SRGS | Stimulated Raman Gain Spectroscopy |
| PIRG | Public Interest Research Group |
| PPAD | Parallel-plate Avalanche Detector |
| QCDL | Quenched Cavity Dye Laser |
| TBAB | Tetrabutylammonium Bromide |
| BIA | Biochemical Induction Assay |
| HTSUS | Harmonized Tariff System U.S. |
| HFI | Hyperfine Interaction |
| SBR | Sequential Batch Reactor |