| Acronym | Meaning |
| 4WM | Four Wave Mixing |
| MARIS | Mississippi Automated Resource Information System |
| QVB | Quasiempirical Valence Bond (method) |
| QSMD | Quantum-stochastic Mol. Dynamics |
| ACE | Aerosol Characterization Experiment |
| CCR | Close-coupling R-matrix |
| MCLT | Minority Carrier Lifetime |
| CAI | Calcium Aluminum Inclusion |
| DAF | Distributed Approximating Functional (in Study Of Quantal Wave-packet Propagation) |
| MTD | Maximum Tolerated Dose |