| Acronym | Meaning |
| SPINDO | Spectroscopic Potentials Adjusted Intermediate Neglect Of Differential Overlap |
| SCI | Super Configuration Interaction |
| ADARD | Acid Deposition And Atmospheric Research Division |
| IAP | Indoor Air Pollution |
| CHEMTREC | Chemical Transportation Emergency Center |
| AMI | Active Microwave Instrument |
| RBC | Rotating Biological Contactor |
| PFOA | Perfluorooctanoic Acid |
| PREM | Preliminary Ref. Earth Model |
| THGF | Trigonometric Hermite Gaussian Function |