| Acronym | Meaning |
| ARPA | Augmented Random Phase Approximation |
| AUSTRALIS | AMS For Ultra Sensitive Trace Element And Isotope Studies |
| RPA | RNase Protection Assay |
| DUV | Deep Ultraviolet |
| LTDU | Land Treatment Demonstration Unit |
| ESDN | Electron Stimulated Desorption Of Neutrals |
| HSDI | High-speed Direct Injection (of Diesel Engines) |
| POM | Polarized Optical Microscopy |
| USDA | United States Department Of Agriculture |
| SESCA | Scanning Electron Spectroscopy For Chemical Applications |