| Acronym | Meaning |
| RTO | Regenerative Thermal Oxidizer |
| FPC | Fractional Parentage Coeff. (in Group-theor. Calcns.) |
| MASH | MgO-Al2O3-SiO2-H2O System |
| APD | Azimuthal Photoelectron Diffraction |
| OSC | On Site Coordinator |
| MEG | Mixed Exponentially Generated (wave Function) |
| MAP | Mean Arterial Pressure |
| TAG | Trans-Atlantic Geotraverse |
| MLCT | Metal-to-ligand Charge-transfer |
| MMD | Mass Medium Diameter (particle Size) |