| Acronym | Meaning |
| TPSR | Temp.-programmed Surface Reaction |
| OVB | Orthogonalized Valence Bond Method |
| DXRD | Differential X-ray Diffraction |
| AUSTRALIS | AMS For Ultra Sensitive Trace Element And Isotope Studies |
| IGBP | International Geosphere Biosphere Programme |
| AIST | Agency Of Industrial Science And Technology (Japan) |
| CAR | Chemically Amplified Resist |
| BWO | Backward Wave Oscillator |
| RCHF | Relaxed-core Hartree-Fock (approxn. In Calcns. On Mol. K-shell Excitation Spectra) |
| AAMI | Association For The Advancement Of Medical Instrumentation |