| Acronym | Meaning |
| PRRSV | Porcine Reproductive And Respiratory Syndrome Virus |
| PCI-80 | Parametrized Configuration Interaction (with Parameter) 80 |
| RCSB | Research Collaboratory For Structural Bioinformatics |
| DMA | Differential Mobility Analyzer |
| AIN | American Institute Of Nutrition |
| GAO | General Accounting Office |
| EPAAR | EPA Acquisition Regulation Manual |
| AMD | Automated Multiple Development |
| CNAEL | Committee On National Accreditation Of Environmental Laboratories (US EPA) |
| EGP | Evolved Gas Profile |