| Acronym | Meaning |
| LIESST | Light-induced Excited Spin State Trapping |
| LSTH | Liu-Siegbahn-Truhlar-Horowitz (potential-energy Surface) |
| HCO | Heavy Cycle Oil |
| CQED | Consortium For Quality Environmental Data |
| SCIAMACHY | SCanning Imaging Absorption SpectroMeter For Atmospheric CHartographY |
| QCR | Quartz Crystal Resonator |
| UHE | Ultra-high Energy |
| NCLI | National Chemical Laboratory For Industry (Japan) |
| SCFX-CI | Excited-state Self-consistent Field Configuration Interaction |
| CSGE | Conformation Sensitive Gel Electrophoresis |