| Acronym | Meaning |
| GCS | Geo-Common Subsystem (subsystem Of AIRS) |
| CBDS | Carcinogenesis Bioassay Data System |
| NDCT | Natural Draft Cooling Tower |
| DSPSE | Deep Space Probe Science Experiment |
| DDTA | Derivative Differential Thermal Analysis |
| TEMA | Tubular Exchanger Manufacturers Assocn. |
| MVC | Multi-variable Control |
| NLSD | Nonlocal Spin Density (functional Theory) |
| ECDIN | Environmental Chemicals Data And Information Network |
| OTEC | Open Tubular Electrochromatography |