| Acronym | Meaning |
| NLC | Nematic Liq. Crystal |
| SMIE | Solid-metal-induced Embrittlement |
| EFA | Essential Fatty Acid |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| GWDR | Ground Water Disinfection Rule |
| PIUG | Patent Information Users Group |
| SINDO/F | SINDO Free Of Empirical Parameters |
| MFA | Molecular-field Approximation |
| QMD | Quantum Molecular Dynamics (for Calcns. On The Dynamics Of A Quantum Particle Coupled To A Classical Many-body System) |
| ATA | Average T-matrix Approximation |