| Acronym | Meaning |
| MLOPEX | Mauna Loa Observatory Photochemistry Experiment |
| QSM | Quantum Statistical Mechanics |
| MEPSAG | Minimum Energy Path Semiclassical Adiabatic Ground-state (tunneling Approxn.) |
| 7-ACA | 7-aminocephalosporanic Acid |
| TOC | Total Organic Carbon |
| EPAAR | EPA Acquisition Regulation Manual |
| SSGF | Self-consistent Surface Green Function |
| ICR | Information Collection Rule |
| TGA | Thermogravimetric Analysis |
| LMWH | Low-molecular-weight Heparin |