| Acronym | Meaning |
| ACGCSA | Adiabatic Capture Global Centrifugal Sudden Approximation |
| HSDI | High-speed Direct Injection (of Diesel Engines) |
| PKD | Protein Kinase D |
| RDF | Restricted Dirac-Fock (quantum Calcn. Method) |
| TEMIS | Total Emissions Model For Integrated Systems |
| HSGFET | Hybrid Suspended Gate Field Effect Transistor |
| USATHAMA | US Army Toxic And Hazardous Materials Agency |
| ZFAAS | Zeeman Furnace Atomic Absorption Spectroscopy |
| VLG | Varying Localized Geminal |
| NDPD | National Data Processing Division |