| Acronym | Meaning |
| IEA | International Energy Agency |
| SAIS | Science And Applications Information System |
| UNIDO | United Nations Industrial Development Organization |
| PWIA | Plane-wave Impulse Approximation |
| BTDA | 3,3',4,4'-benzophenonetetracarboxylic Dianhydride |
| PSU | Practical Salinity Units |
| KKRZ | Korringa-Kohn-Rostoker-Ziman (in Energy-band Calcns.) |
| MCGR | Monte-Carlo Renormalization Group |
| CICAD | Concise International Chemical Assessment Documents |
| ZTS | Z Transition State [z = Nuclear Charge] (method For Calcg. Isoelectronic Energy Differences And Electrostatic Potentials For A |