| Acronym | Meaning |
| IUBMB | International Union Of Biochemistry And Molecular Biology |
| VGO | Virgin Gas Oil |
| CAMM | Cumulative Atomic Multipole Moment (for Mol. Charge Distributions) |
| RMAN | Recovered Materials Advisory Notice |
| RWKB | Relativistic Wentzel-Kramers-Brillouin |
| LCVO | Linear Combination Of Valence Orbitals |
| DRIFTS | Diffuse Reflectance Infrared Fourier Transform Spectroscopy |
| IIRF | Infinite Impulse Response Filter |
| OCH | Ochkur (approxn. In Electron-atom Scattering Calcns.) |
| PWTM | Plane-wave T-matrix (for Electron-atom Scattering) |