| Acronym | Meaning |
| PTA | Plasma Transferred Arc |
| DHXP | Dihexyl Phthalate |
| ECCF | Exchange Correlated Crystal Field |
| FCM | Finite-cluster Model (for Calcns. On Electromigration) |
| EIS | Eikonal Initial State (in Scattering Calcns.) |
| LC | Lethal Concentration |
| AAR | Alkali-aggregate Reaction |
| SNIF | Site-specific Natural Isotope Fractionation |
| OPC | Ordinary Portland Cement |
| PVP | Polyvinyl Pyrrolidone |