| Acronym | Meaning |
| ECAE | Equal Channel Angular Extrusion |
| RCP | Recursive Correlation Partitioning |
| HPSAM | H-point Standard Additions Method |
| OEMO | One Electron Molecular Orbital |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| GIME | Gas Injection Membrane Extraction |
| AWRE | Atomic Weapons Research Establishment |
| LASTO | Linear Augmented Slater-type Orbital (for Electronic Structure) |
| SAMA | Scientific Apparatus Makers Association |
| CAC | Critical Aggregation Concentration |