| Acronym | Meaning |
| MPD | Maximum Permissible Dose |
| WILDCAT | Warning And Identification Lidar Detector For Countering Agent Threats |
| CCC | Correlated Coupled Cluster (quantum Calcn. Method) |
| LVSEM | Low Voltage Scanning Electron Microscopy |
| ICS | Inhaled Corticosteroid |
| PROWL | Protein Information Retrieval Online World Wide Web Lab |
| TBC | Two-beam Coupling |
| PTIS | Photothermal Ionization Spectroscopy |
| AOB | Analytical Operations Branch (OSWER) |
| FILOS | Far Infrared Limb Observing Spectrometer |