| Acronym | Meaning |
| BTU | British Thermal Unit |
| HWGTF | Hazardous Waste Groundwater Test Facility |
| PCET | Proton-coupled Electron Transfer |
| CIPO | Canadian Intellectual Property Office |
| AESOP | Automated Electronic System For Ocean Pollution |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| GIAO | Gage Invariant Atomic Orbital |
| FOEA | First-order Eikonal Approximation |
| IX | Ion Exchange |
| GIAXRD | Grazing Incidence Angle X-ray Diffraction |