| Acronym | Meaning |
| RMP2 | Restricted Moeller-Plesset Second-order (perturbation Theory) |
| ATM | Airborne Thematic Mapper |
| EDCF | Endothelium-derived Contracting Factor |
| DEA | Drug Enforcement Administration |
| BCP | Biphasic Calcium Phosphate |
| TPE | Thermoplastic Polyester Elastomer |
| APFIM | Atom Probe Field Ion Microscopy |
| LEMAO | Least Energy Minimal Atomic Orbital |
| SMR | Standardized Mortality Ratios |
| LCAO LDA | LCAO-local Density Approxn. |