| Acronym | Meaning |
| AD | Alzheimer Disease |
| PETRA | Plasma Engineering And Technology Research Assembly |
| STOL | Short Take-Off And Landing |
| CARS | Corrective Action Reporting System (now Known As RCRIS) |
| PDPID | Pulsed Discharge Photoionization Detector |
| CP | Chemical Pseudopotential |
| MCEP | Multiconfigurational Electron Propagator (in Ionization Potential Calcns.) |
| ALTER | Acceptable Long-term Exposure Range |
| RVS-SCF | Reduced Variational Space-self-consistent Field (in Quantum Calcns. On Hydrogen Bonding) |
| FETI | Fire, Explosion And Toxicity Index |