| Acronym | Meaning |
| RHO | Reduced Hamiltonian Orbital Method |
| INDOEX | Indian Ocean Experiment |
| BAT | Biol. Tolerance Value (German Std.) |
| QDFM | Quantitative DNA Fiber Mapping |
| BIS | Bureau Of Indian Stds. |
| SCE | Semiclassical Exchange Approximation |
| CHEF | Chelation Enhanced Fluorescence |
| BGS | Below Ground Surface |
| TED | Transmission Electron Diffraction |
| BGK | Bhatnagar-Gross-Krook (kinetic-theory Model For Reactive Collisions) |