| Acronym | Meaning |
| PHO | Pseudoharmonic Oscillator |
| CCSD-EH | CCSD-effective Hamiltonian |
| LIMS | Limb Infrared Monitor Of The Stratosphere |
| CISDTQ | Configuration Interaction With Single |
| MERLIN | Multi-element Radio-linked Interferometer Network |
| CPC | Centrifugal Partition Chromatography |
| SES | Surface Electronic State |
| UCMR | Unregulated Contaminant Monitoring Regulation |
| EFISPS | Electric Field Induced Surface Photovoltage Spectroscopy |
| SSF | Slow Sand Filtration (water Treatment) |