| Acronym | Meaning |
| IHF | Inhomogeneous Hartree-Fock |
| CCAP | Cancer Chromosome Aberration Project |
| CFCM | Continuous Feed Completely Mixed Reactor System |
| EFOIA | Electronic Freedom Of Information Act |
| ACE | Acidity In Cloud Experiment |
| RHT | Restricted Hueckel Method |
| REL | Recommended Exposure Limit(s) |
| EIP | Economic Incentive Program |
| HLG | Hedin-Lundqvist-Gunnarsson (spin D. Functional) |
| NADH | Reduced Nicotinamide Adenine Dinucleotide |