| Acronym | Meaning |
| BIT | Binary Digit (either 0 Or 1) |
| MDCRS | Meteorological Data Collection And Reporting System |
| SEM | Scanning Electron Microscope |
| FFDCA | Federal Food, Drug, And Cosmetic Act (US) |
| MADAM | Master Data Acquisition Module |
| XMDSL | X Window Interface Distributed Software Library |
| OSIS | Office Of Scientific Information Service |
| ACARS | ARINC Communications And Relay System |
| IMAGES | Intermediate Model For The Annual And Global Evolution Of Interactive Systems |
| FDM | Full-depth Model |