| Acronym | Meaning |
| BNA | Bureau Of National Affairs |
| HRATS | High-Rate Anaerobic Treatment Systems |
| SRT | Sludge Or Solids Retention Time |
| PIMC | Path-integral Monte-Carlo |
| ARF | Acute Renal Failure |
| PC-BOSS | Particle Concentrator-Brigham Young University Organic Sampling System |
| VRIOSA | Vibrational/rotational Infinite-order Sudden Approximation |
| ZINDO | Zerner's Intermediate Neglect Of Differential Overlap |
| FDMS | Field-desorption Mass Spectrometry |
| USPHS | United States Public Health Service |