| Acronym | Meaning |
| HFO | Hydrous Ferric Oxide |
| VSIP | Valence State Ionization Potential |
| CAIBE | Chemically Assisted Ion Beam Etching |
| ACPTQ | Approx. Coupled Pair (theory Cor. For Connected) Triple And Quadruple Excitations |
| BK | Brinkman-Kramers (approxn. In Ion-mol. Collision Quantum Calcn.) |
| CPI | Chemical Process Industry |
| FOM | Forced Oscillator Model |
| BSS | Backscattering Spectroscopy |
| MTB | Mycobacterium Tuberculosis |
| BRM | Band Random Matrix (model For Quantum Localization In Conservative Systems) |