| Acronym | Meaning |
| N-BOD | Nitrogenous Biochemical Oxygen Demand |
| MCDF | Multi-configuration Dirac-Fock |
| UATMP | Urban Air Toxics Monitoring Program |
| PSIT | Plasma Source Ion Trap |
| IAP | Immunosuppressive Acidic Protein |
| MCNDO | Modified Complete Neglect Of Differential Overlap |
| CEDI | Continuous Electrodeionization |
| HERL | Health Effects Research Laboratory |
| IPIB | Intense Pulsed Ion Beam |
| IPS | Inverse Photoemission Spectroscopy |