| Acronym | Meaning |
| LDQ | Linnett Double Quartet (equivalent To Nonpairing Spatial Orbital Theory) |
| STARR | Staged Approach To Risk Reduction |
| SCN | Suprachiasmatic Nucleus |
| NASQUAN | National Stream Water Quality Accounting Network |
| GCAM | Global Change Assessment Modeling |
| UVP | Ultrasonic Vibration Potential |
| RWKB | Relativistic Wentzel-Kramers-Brillouin |
| LADH | Liver Alcohol Dehydrogenase |
| CLIMAP | Climate Long-range Investigation Mapping And Prediction |
| PMDA | Pyromellitic Dianhydride |