| Acronym | Meaning |
| 7-ACA | 7-aminocephalosporanic Acid |
| DID | Dipole-induced-dipole (in Mol. Polarizabilities Calcn.) |
| LILE | Large-ion Lithophile Element |
| HIT | Hazard Information Transmission |
| SSQW | Strained Single Quantum Well |
| FNO | Frozen Natural Orbital |
| CBO | Corrected Born-Oppenheimer (in Calcns. For Mol. Complexes) |
| APC | Air Pollution Control |
| SAPW | Symmetrized Augmented Plane Wave |
| SULEV | Super Ultra-low Emission Vehicle |