| Acronym | Meaning |
| PPA | Pollution Prevention Act (of 1990) |
| MOSC | Metal-oxide-semiconductor Capacitor |
| BSO | Basic Symmetric Operator (in Second-quantization Calculations) |
| DZ | Double Zeta (basis Set) |
| RNG | Renormalized Group Theory |
| DUVAS | Derivative Ultraviolet Absorption Spectrometer |
| UMP | Uridine 5'-phosphate |
| IUBMB | International Union Of Biochemistry And Molecular Biology |
| LSDSIC | Local-spin-density Self-interaction-correction Approxn. (in Total Energy Calcns. For Atoms) |
| HQM | Hemiquantal Mechanics (in Mol. Calcns.) |