| Acronym | Meaning |
| MET | Many Electron Theory (for Singlet Ground State) |
| TDMCSCF | Time-dependent MC-SCF |
| SEPA | State Environmental Policy Act |
| UPA | Unitary-pole Approximation |
| BAL | Broad Absorption Line |
| KSA | Kirkwood Superposition Approximation |
| DAU | Drug Abuse Urine |
| MBBR | Moving Bed Biofilm Reactor |
| STR | Short Tandem Repeat |
| LARVA | Light-absorption Ratio Variation Approach |