| Acronym | Meaning |
| SO SCF | Spin-optimized Self-consistent Field |
| PEPECO | Photoelectron-photoelectron Coincidence |
| AIIM | Association For Information And Image Management |
| LCI-SCSCFMO | Limited Configuration Interaction Single-configuration SCF MO |
| INMS | Institute For National Measurement Standards |
| AREAL | Atmospheric Research And Exposure Assessment Laboratory |
| ANPP | 4-azido-2-nitrophenyl Phosphate |
| ABR | Anaerobic Baffled Reactor (for Wastewater Treatment) |
| SSCPA | Single-site Coherent-potential Approximation |
| ESPT | Electron Spin Polarization Transfer |