| Acronym | Meaning |
| DSCCR | Diffractive Sudden-closed Coupled Rotation (for Mol.-surface Scattering Calcns.) |
| CAS-SCF | Complete Active Space SCF (a CI-type Method) |
| MPQC | Massively Parallel Quantum Chemistry |
| TPM | Two-potential Model (in At. Scattering Calcns.) |
| NOI | Notice Of Intent |
| LREE | Light Rare Earth Element(s) |
| EPSRC | (United Kingdom) Engineering And Phys. Sciences Research Council |
| FASEB | Federation Of American Societies For Experimental Biology |
| PBO | Polarized Born-Oppenheimer |
| CPPA | Canadian Pulp And Paper Association |