| Acronym | Meaning |
| FIK | Field Ionization Kinetics |
| CDP | Contracted Density Product (in Simplification Of MO Calcns.) |
| CCAP | Crustacean Cardioactive Peptide |
| FMOS | Flavin-containing Monooxygenases |
| CLSA | Closed Loop Stripping Analysis |
| NATO | North Atlantic Treaty Organization |
| PGWDB | Pesticides In Ground Water Database |
| HSRC | Hazardous Substance Research Center |
| TERT | Telomerase Reverse Transcriptase |
| HSOS-CCSD | High-spin Open-shell-CCSD |